diff --git a/addons/a11y/package.json b/addons/a11y/package.json
index ab90e3d9b4b1..3de28499eebd 100644
--- a/addons/a11y/package.json
+++ b/addons/a11y/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-a11y",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Test component compliance with web accessibility standards",
   "keywords": [
     "a11y",
@@ -45,14 +45,14 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "axe-core": "^4.2.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/addons/actions/package.json b/addons/actions/package.json
index db7f21b75865..0746fbf9740d 100644
--- a/addons/actions/package.json
+++ b/addons/actions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-actions",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Get UI feedback when an action is performed on an interactive element",
   "keywords": [
     "storybook",
@@ -41,12 +41,12 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "fast-deep-equal": "^3.1.3",
     "global": "^4.4.0",
diff --git a/addons/backgrounds/package.json b/addons/backgrounds/package.json
index 5a44b1e46ab3..875a3498eece 100644
--- a/addons/backgrounds/package.json
+++ b/addons/backgrounds/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-backgrounds",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Switch backgrounds to view components in different settings",
   "keywords": [
     "addon",
@@ -45,13 +45,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "memoizerific": "^1.11.3",
diff --git a/addons/controls/package.json b/addons/controls/package.json
index c52842664960..eb9d4636307c 100644
--- a/addons/controls/package.json
+++ b/addons/controls/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-controls",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Interact with component inputs dynamically in the Storybook UI",
   "keywords": [
     "addon",
@@ -45,15 +45,15 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/store": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/store": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "lodash": "^4.17.21",
     "ts-dedent": "^2.0.0"
diff --git a/addons/docs/package.json b/addons/docs/package.json
index 8f7b389dbaf5..2b90c36b13af 100644
--- a/addons/docs/package.json
+++ b/addons/docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-docs",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Document component usage and properties in Markdown",
   "keywords": [
     "addon",
@@ -63,21 +63,21 @@
     "@mdx-js/loader": "^1.6.22",
     "@mdx-js/mdx": "^1.6.22",
     "@mdx-js/react": "^1.6.22",
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/csf-tools": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/postinstall": "6.4.20",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/source-loader": "6.4.20",
-    "@storybook/store": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/csf-tools": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/postinstall": "6.4.21",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/source-loader": "6.4.21",
+    "@storybook/store": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "acorn": "^7.4.1",
     "acorn-jsx": "^5.3.1",
     "acorn-walk": "^7.2.0",
@@ -106,11 +106,11 @@
     "@babel/core": "^7.12.10",
     "@emotion/core": "^10.1.1",
     "@emotion/styled": "^10.0.27",
-    "@storybook/angular": "6.4.20",
-    "@storybook/html": "6.4.20",
-    "@storybook/react": "6.4.20",
-    "@storybook/vue": "6.4.20",
-    "@storybook/web-components": "6.4.20",
+    "@storybook/angular": "6.4.21",
+    "@storybook/html": "6.4.21",
+    "@storybook/react": "6.4.21",
+    "@storybook/vue": "6.4.21",
+    "@storybook/web-components": "6.4.21",
     "@types/cross-spawn": "^6.0.2",
     "@types/doctrine": "^0.0.3",
     "@types/enzyme": "^3.10.8",
@@ -211,4 +211,4 @@
       "react-native"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/addons/essentials/package.json b/addons/essentials/package.json
index fbd7e0bf79e5..e29e713bd572 100644
--- a/addons/essentials/package.json
+++ b/addons/essentials/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-essentials",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Curated addons to bring out the best of Storybook",
   "keywords": [
     "addon",
@@ -39,24 +39,24 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-measure": "6.4.20",
-    "@storybook/addon-outline": "6.4.20",
-    "@storybook/addon-toolbars": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-measure": "6.4.21",
+    "@storybook/addon-outline": "6.4.21",
+    "@storybook/addon-toolbars": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
     "core-js": "^3.8.2",
     "regenerator-runtime": "^0.13.7",
     "ts-dedent": "^2.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.12.10",
-    "@storybook/vue": "6.4.20",
+    "@storybook/vue": "6.4.21",
     "@types/jest": "^26.0.16",
     "@types/webpack-env": "^1.16.0"
   },
@@ -95,4 +95,4 @@
   },
   "gitHead": "c91a26aff48ee9c5ee555c4788513c6cef16e0a9",
   "sbmodern": "dist/modern/index.js"
-}
\ No newline at end of file
+}
diff --git a/addons/interactions/package.json b/addons/interactions/package.json
index ee02e0058d98..da52237f4e5e 100644
--- a/addons/interactions/package.json
+++ b/addons/interactions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-interactions",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Automate, test and debug user interactions",
   "keywords": [
     "storybook-addons",
@@ -41,14 +41,14 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/instrumenter": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/instrumenter": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "global": "^4.4.0",
     "jest-mock": "^27.0.6",
     "polished": "^4.0.5",
diff --git a/addons/jest/package.json b/addons/jest/package.json
index 67285e0c6890..d1b44903cb94 100644
--- a/addons/jest/package.json
+++ b/addons/jest/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-jest",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "React storybook addon that show component jest report",
   "keywords": [
     "addon",
@@ -47,11 +47,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "react-sizeme": "^3.0.1",
diff --git a/addons/links/package.json b/addons/links/package.json
index 75e1f047d73c..eab539946940 100644
--- a/addons/links/package.json
+++ b/addons/links/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-links",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Link stories together to build demos and prototypes with your UI components",
   "keywords": [
     "addon",
@@ -41,11 +41,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/router": "6.4.20",
+    "@storybook/router": "6.4.21",
     "@types/qs": "^6.9.5",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/addons/measure/package.json b/addons/measure/package.json
index fd49daad6daa..020e4283b3f4 100644
--- a/addons/measure/package.json
+++ b/addons/measure/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-measure",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Inspect layouts by visualizing the box model",
   "keywords": [
     "storybook-addons",
@@ -44,11 +44,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0"
diff --git a/addons/outline/package.json b/addons/outline/package.json
index cf4624adcbf0..ed0c21398cd5 100644
--- a/addons/outline/package.json
+++ b/addons/outline/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-outline",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Outline all elements with CSS to help with layout placement and alignment",
   "keywords": [
     "storybook-addons",
@@ -47,11 +47,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/addons/storyshots/storyshots-core/package.json b/addons/storyshots/storyshots-core/package.json
index f94d4c5d8bee..4b1748fbfc3a 100644
--- a/addons/storyshots/storyshots-core/package.json
+++ b/addons/storyshots/storyshots-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storyshots",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Take a code snapshot of every story automatically with Jest",
   "keywords": [
     "addon",
@@ -45,12 +45,12 @@
   },
   "dependencies": {
     "@jest/transform": "^26.6.2",
-    "@storybook/addons": "6.4.20",
+    "@storybook/addons": "6.4.21",
     "@storybook/babel-plugin-require-context-hook": "1.0.1",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-client": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-client": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
     "@types/glob": "^7.1.3",
     "@types/jest": "^26.0.16",
@@ -69,11 +69,11 @@
   "devDependencies": {
     "@angular/core": "^11.2.0",
     "@angular/platform-browser-dynamic": "^11.2.0",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/angular": "6.4.20",
-    "@storybook/react": "6.4.20",
-    "@storybook/vue": "6.4.20",
-    "@storybook/vue3": "6.4.20",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/angular": "6.4.21",
+    "@storybook/react": "6.4.21",
+    "@storybook/vue": "6.4.21",
+    "@storybook/vue3": "6.4.21",
     "babel-loader": "^8.0.0",
     "enzyme": "^3.11.0",
     "enzyme-to-json": "^3.6.1",
diff --git a/addons/storyshots/storyshots-puppeteer/package.json b/addons/storyshots/storyshots-puppeteer/package.json
index 30a3c7d11a11..a53c5b391bb9 100644
--- a/addons/storyshots/storyshots-puppeteer/package.json
+++ b/addons/storyshots/storyshots-puppeteer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storyshots-puppeteer",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Image snapshots addition to StoryShots based on puppeteer",
   "keywords": [
     "addon",
@@ -42,7 +42,7 @@
   "dependencies": {
     "@axe-core/puppeteer": "^4.2.0",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
     "@types/jest-image-snapshot": "^4.1.3",
     "core-js": "^3.8.2",
     "jest-image-snapshot": "^4.3.0",
@@ -65,4 +65,4 @@
     "access": "public"
   },
   "gitHead": "c91a26aff48ee9c5ee555c4788513c6cef16e0a9"
-}
\ No newline at end of file
+}
diff --git a/addons/storysource/package.json b/addons/storysource/package.json
index b462ad5250f9..eecea1cbd85c 100644
--- a/addons/storysource/package.json
+++ b/addons/storysource/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storysource",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "View a story’s source code to see how it works and paste into your app",
   "keywords": [
     "addon",
@@ -41,13 +41,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/router": "6.4.20",
-    "@storybook/source-loader": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/router": "6.4.21",
+    "@storybook/source-loader": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "estraverse": "^5.2.0",
     "loader-utils": "^2.0.0",
diff --git a/addons/toolbars/package.json b/addons/toolbars/package.json
index 313346dfdb49..7f89e340f017 100644
--- a/addons/toolbars/package.json
+++ b/addons/toolbars/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-toolbars",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Create your own toolbar items that control story rendering",
   "keywords": [
     "addon",
@@ -45,10 +45,10 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "regenerator-runtime": "^0.13.7"
   },
diff --git a/addons/viewport/package.json b/addons/viewport/package.json
index 0e8caa239fe0..8f19d5ed04a4 100644
--- a/addons/viewport/package.json
+++ b/addons/viewport/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-viewport",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Build responsive components by adjusting Storybook’s viewport size and orientation",
   "keywords": [
     "addon",
@@ -42,12 +42,12 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "memoizerific": "^1.11.3",
diff --git a/app/angular/package.json b/app/angular/package.json
index 2acde5aff913..c74f9af643aa 100644
--- a/app/angular/package.json
+++ b/app/angular/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/angular",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Angular: Develop Angular Components in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,15 +45,15 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "autoprefixer": "^9.8.6",
     "core-js": "^3.8.2",
diff --git a/app/ember/package.json b/app/ember/package.json
index ad1394575d2c..798c8667c99f 100644
--- a/app/ember/package.json
+++ b/app/ember/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/ember",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Ember: Develop Ember Component in isolation with Hot Reloading.",
   "homepage": "https://github.com/storybookjs/storybook/tree/main/app/ember",
   "bugs": {
@@ -43,9 +43,9 @@
   },
   "dependencies": {
     "@ember/test-helpers": "^2.1.4",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/store": "6.4.20",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/store": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "react": "16.14.0",
diff --git a/app/html/package.json b/app/html/package.json
index 17a082659d71..d30ad3edce7d 100644
--- a/app/html/package.json
+++ b/app/html/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/html",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for HTML: View HTML snippets in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,13 +45,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/store": "6.4.20",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/app/preact/package.json b/app/preact/package.json
index a1a2af959b27..195ddb9424f0 100644
--- a/app/preact/package.json
+++ b/app/preact/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/preact",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Preact: Develop Preact Component in isolation.",
   "keywords": [
     "storybook"
@@ -46,11 +46,11 @@
   },
   "dependencies": {
     "@babel/plugin-transform-react-jsx": "^7.12.12",
-    "@storybook/addons": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/app/react/package.json b/app/react/package.json
index f03a642df878..c1b43f895a8b 100644
--- a/app/react/package.json
+++ b/app/react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/react",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for React: Develop React Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -49,14 +49,14 @@
     "@babel/preset-flow": "^7.12.1",
     "@babel/preset-react": "^7.12.10",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.5.1",
-    "@storybook/addons": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
     "@storybook/react-docgen-typescript-plugin": "1.0.2-canary.253f8c1.0",
     "@storybook/semver": "^7.3.2",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "babel-plugin-add-react-displayname": "^0.0.5",
     "babel-plugin-named-asset-import": "^0.3.1",
@@ -72,7 +72,7 @@
     "webpack": "4"
   },
   "devDependencies": {
-    "@storybook/client-api": "6.4.20",
+    "@storybook/client-api": "6.4.21",
     "@types/node": "^14.14.20",
     "@types/prompts": "^2.0.9"
   },
diff --git a/app/server/package.json b/app/server/package.json
index 81538c25b9f1..ea438d48cd21 100644
--- a/app/server/package.json
+++ b/app/server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/server",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Server: View HTML snippets from a server in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,15 +45,15 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/store": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/app/svelte/package.json b/app/svelte/package.json
index c65abeaf31b7..a330b8f43a75 100644
--- a/app/svelte/package.json
+++ b/app/svelte/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/svelte",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Svelte: Develop Svelte Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,11 +45,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "react": "16.14.0",
diff --git a/app/vue/package.json b/app/vue/package.json
index 42f6ed09be66..5c055c375afd 100644
--- a/app/vue/package.json
+++ b/app/vue/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/vue",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Vue: Develop Vue Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,11 +45,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/app/vue3/package.json b/app/vue3/package.json
index cbdb948f2cef..06592d9e523b 100644
--- a/app/vue3/package.json
+++ b/app/vue3/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/vue3",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for Vue 3: Develop Vue 3 Components in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -45,11 +45,11 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/app/web-components/package.json b/app/web-components/package.json
index f02f476050c4..133f66c00d79 100644
--- a/app/web-components/package.json
+++ b/app/web-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/web-components",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook for web-components: View web components snippets in isolation with Hot Reloading.",
   "keywords": [
     "lit-html",
@@ -50,13 +50,13 @@
     "@babel/plugin-syntax-dynamic-import": "^7.8.3",
     "@babel/plugin-syntax-import-meta": "^7.10.4",
     "@babel/preset-env": "^7.12.11",
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-common": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-common": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/store": "6.4.20",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/store": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "babel-plugin-bundled-import-meta": "^0.3.1",
     "core-js": "^3.8.2",
diff --git a/examples/angular-cli/package.json b/examples/angular-cli/package.json
index 3121d5d89bb0..8d52549115d2 100644
--- a/examples/angular-cli/package.json
+++ b/examples/angular-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "angular-cli",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "license": "MIT",
   "scripts": {
@@ -39,21 +39,21 @@
     "@angular/compiler-cli": "^11.2.14",
     "@angular/elements": "^11.2.14",
     "@compodoc/compodoc": "^1.1.18",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-interactions": "6.4.20",
-    "@storybook/addon-jest": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/angular": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-interactions": "6.4.21",
+    "@storybook/addon-jest": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/angular": "6.4.21",
     "@storybook/babel-plugin-require-context-hook": "1.0.1",
     "@storybook/jest": "^0.0.5",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/source-loader": "6.4.21",
     "@storybook/testing-library": "^0.0.7",
     "@types/core-js": "^2.5.4",
     "@types/jest": "^26.0.16",
diff --git a/examples/cra-kitchen-sink/package.json b/examples/cra-kitchen-sink/package.json
index 584358d34dbd..11911fc9ea07 100644
--- a/examples/cra-kitchen-sink/package.json
+++ b/examples/cra-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cra-kitchen-sink",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "react-scripts build",
@@ -11,7 +11,7 @@
     "test": "react-scripts test --env=jsdom"
   },
   "dependencies": {
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/client-logger": "6.4.21",
     "global": "^4.4.0",
     "prop-types": "^15.7.2",
     "react": "16.14.0",
@@ -21,19 +21,19 @@
   },
   "devDependencies": {
     "@pmmmwh/react-refresh-webpack-plugin": "^0.4.3",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
     "@storybook/addon-ie11": "0.0.7--canary.5e87b64.0",
-    "@storybook/addon-jest": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
+    "@storybook/addon-jest": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
     "@storybook/preset-create-react-app": "^3.1.6",
-    "@storybook/react": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/react": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "webpack": "4"
   },
   "storybook": {
diff --git a/examples/cra-react15/package.json b/examples/cra-react15/package.json
index 772e7c90f224..c4a362c86d6b 100644
--- a/examples/cra-react15/package.json
+++ b/examples/cra-react15/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cra-react15",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "react-scripts build",
@@ -19,14 +19,14 @@
     "react-scripts": "3.4.4"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "6.4.20",
+    "@storybook/addon-actions": "6.4.21",
     "@storybook/addon-ie11": "0.0.7--canary.5e87b64.0",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
     "@storybook/preset-create-react-app": "^3.1.6",
-    "@storybook/react": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/react": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "babel-core": "6",
     "babel-runtime": "6",
     "webpack": "4"
diff --git a/examples/cra-ts-essentials/package.json b/examples/cra-ts-essentials/package.json
index 990291108890..3933c40f7c2d 100644
--- a/examples/cra-ts-essentials/package.json
+++ b/examples/cra-ts-essentials/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cra-ts-essentials",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "react-scripts build",
@@ -34,12 +34,12 @@
     "typescript": "^3.9.7"
   },
   "devDependencies": {
-    "@storybook/addon-essentials": "6.4.20",
+    "@storybook/addon-essentials": "6.4.21",
     "@storybook/addon-ie11": "0.0.7--canary.5e87b64.0",
-    "@storybook/addons": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
     "@storybook/preset-create-react-app": "^3.1.6",
-    "@storybook/react": "6.4.20",
+    "@storybook/react": "6.4.21",
     "webpack": "4"
   },
   "storybook": {
diff --git a/examples/cra-ts-kitchen-sink/package.json b/examples/cra-ts-kitchen-sink/package.json
index d8d4a2b51d4a..dfd5debbdd78 100644
--- a/examples/cra-ts-kitchen-sink/package.json
+++ b/examples/cra-ts-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cra-ts-kitchen-sink",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "react-scripts build",
@@ -34,15 +34,15 @@
     "typescript": "^3.9.7"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
     "@storybook/addon-ie11": "0.0.7--canary.5e87b64.0",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
     "@storybook/preset-create-react-app": "^3.1.6",
-    "@storybook/react": "6.4.20",
+    "@storybook/react": "6.4.21",
     "@types/enzyme": "^3.10.8",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.9.1",
diff --git a/examples/ember-cli/package.json b/examples/ember-cli/package.json
index 43a91abdadd8..f1d10ff6d2df 100644
--- a/examples/ember-cli/package.json
+++ b/examples/ember-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ember-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "ember build --output-path ember-output",
@@ -17,18 +17,18 @@
   "devDependencies": {
     "@babel/core": "^7.12.10",
     "@ember/optional-features": "^2.0.0",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/ember": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/ember": "6.4.21",
     "@storybook/ember-cli-storybook": "^0.2.1",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/source-loader": "6.4.21",
     "babel-loader": "^8.0.0",
     "broccoli-asset-rev": "^3.0.0",
     "cross-env": "^7.0.3",
diff --git a/examples/html-kitchen-sink/package.json b/examples/html-kitchen-sink/package.json
index c7322f91f554..d435c8b0272f 100644
--- a/examples/html-kitchen-sink/package.json
+++ b/examples/html-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "html-kitchen-sink",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "description": "",
   "keywords": [],
@@ -13,23 +13,23 @@
     "storybook": "start-storybook -p 9006 --no-manager-cache"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-jest": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-jest": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
     "@storybook/addon-postcss": "^2.0.0",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/core": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/html": "6.4.20",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/core": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/html": "6.4.21",
+    "@storybook/source-loader": "6.4.21",
     "autoprefixer": "^10.0.1",
     "eventemitter3": "^4.0.7",
     "format-json": "^1.0.3",
diff --git a/examples/official-storybook/package.json b/examples/official-storybook/package.json
index 6b93bb3a7f12..a27e85fb127b 100644
--- a/examples/official-storybook/package.json
+++ b/examples/official-storybook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "official-storybook",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build-storybook": "cross-env STORYBOOK_DISPLAY_WARNING=true DISPLAY_WARNING=true build-storybook -c ./",
@@ -14,31 +14,31 @@
   "devDependencies": {
     "@packtracker/webpack-plugin": "^2.3.0",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.4.3",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-interactions": "6.4.20",
-    "@storybook/addon-jest": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storyshots-puppeteer": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-toolbars": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/cli": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-interactions": "6.4.21",
+    "@storybook/addon-jest": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storyshots-puppeteer": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-toolbars": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/cli": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/design-system": "^5.4.7",
     "@storybook/jest": "^0.0.5",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/react": "6.4.20",
-    "@storybook/router": "6.4.20",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/react": "6.4.21",
+    "@storybook/router": "6.4.21",
+    "@storybook/source-loader": "6.4.21",
     "@storybook/testing-library": "^0.0.7",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "@testing-library/dom": "^7.31.2",
     "@testing-library/user-event": "^13.1.9",
     "chromatic": "^6.0.2",
diff --git a/examples/preact-kitchen-sink/package.json b/examples/preact-kitchen-sink/package.json
index b83c7d0111e5..4ee21d10c17c 100644
--- a/examples/preact-kitchen-sink/package.json
+++ b/examples/preact-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "preact-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules",
@@ -15,16 +15,16 @@
   "devDependencies": {
     "@babel/core": "^7.12.10",
     "@babel/plugin-transform-runtime": "^7.12.10",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
-    "@storybook/preact": "6.4.20",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/preact": "6.4.21",
+    "@storybook/source-loader": "6.4.21",
     "@types/prop-types": "^15.7.3",
     "@types/react": "^17",
     "@types/react-dom": "^17",
diff --git a/examples/react-ts-webpack4/package.json b/examples/react-ts-webpack4/package.json
index 88330c00dc10..68fd2fa7fbda 100644
--- a/examples/react-ts-webpack4/package.json
+++ b/examples/react-ts-webpack4/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/example-react-ts-webpack4",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build-storybook": "cross-env STORYBOOK_DISPLAY_WARNING=true DISPLAY_WARNING=true build-storybook -c ./",
@@ -8,10 +8,10 @@
     "storybook": "cross-env STORYBOOK_DISPLAY_WARNING=true DISPLAY_WARNING=true start-storybook -p 9011 -c ./ --no-manager-cache"
   },
   "dependencies": {
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-essentials": "6.4.20",
-    "@storybook/builder-webpack4": "6.4.20",
-    "@storybook/react": "6.4.20",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-essentials": "6.4.21",
+    "@storybook/builder-webpack4": "6.4.21",
+    "@storybook/react": "6.4.21",
     "@types/react": "^16.14.2",
     "@types/react-dom": "^16.9.10",
     "prop-types": "15.7.2",
diff --git a/examples/react-ts/package.json b/examples/react-ts/package.json
index 206a2dccb862..4502af3cd90f 100644
--- a/examples/react-ts/package.json
+++ b/examples/react-ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/example-react-ts",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build-storybook": "cross-env STORYBOOK_DISPLAY_WARNING=true DISPLAY_WARNING=true build-storybook",
@@ -18,13 +18,13 @@
     "@babel/preset-env": "^7.12.11",
     "@babel/preset-react": "^7.12.10",
     "@babel/preset-typescript": "^7.12.7",
-    "@storybook/addon-essentials": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/cli": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/react": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/addon-essentials": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/cli": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/react": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "@testing-library/dom": "^7.31.2",
     "@testing-library/user-event": "^13.1.9",
     "@types/babel__preset-env": "^7",
diff --git a/examples/server-kitchen-sink/package.json b/examples/server-kitchen-sink/package.json
index 9f56e4fcba8f..8cf398de5147 100644
--- a/examples/server-kitchen-sink/package.json
+++ b/examples/server-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "server-kitchen-sink",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "description": "",
   "keywords": [],
@@ -14,13 +14,13 @@
     "storybook": "SERVER_PORT=1137 start-storybook -p 9006 --quiet"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/server": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/server": "6.4.21",
     "concurrently": "^5.3.0",
     "cors": "^2.8.5",
     "express": "~4.17.1",
diff --git a/examples/standalone-preview/package.json b/examples/standalone-preview/package.json
index c76d67af431b..2374c6438fa7 100644
--- a/examples/standalone-preview/package.json
+++ b/examples/standalone-preview/package.json
@@ -1,13 +1,13 @@
 {
   "name": "standalone-preview",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "storybook": "parcel ./storybook.html --port 1337"
   },
   "devDependencies": {
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/react": "6.4.20",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/react": "6.4.21",
     "parcel": "^1.12.4",
     "react": "16.14.0",
     "react-dom": "16.14.0"
diff --git a/examples/svelte-kitchen-sink/package.json b/examples/svelte-kitchen-sink/package.json
index 70c738473496..32e2c72d126e 100644
--- a/examples/svelte-kitchen-sink/package.json
+++ b/examples/svelte-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build-storybook": "build-storybook",
@@ -10,20 +10,20 @@
     "global": "^4.4.0"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-interactions": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-interactions": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
     "@storybook/jest": "^0.0.5",
-    "@storybook/source-loader": "6.4.20",
-    "@storybook/svelte": "6.4.20",
+    "@storybook/source-loader": "6.4.21",
+    "@storybook/svelte": "6.4.21",
     "@storybook/testing-library": "^0.0.7",
     "svelte-jester": "1.3.0",
     "svelte-preprocess": "4.6.8"
diff --git a/examples/vue-3-cli/package.json b/examples/vue-3-cli/package.json
index 4bb512298e42..205c9b24c98c 100644
--- a/examples/vue-3-cli/package.json
+++ b/examples/vue-3-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-3-cli-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "vue-cli-service build",
@@ -14,14 +14,14 @@
   },
   "devDependencies": {
     "@babel/core": "^7.12.10",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-essentials": "6.4.20",
-    "@storybook/addon-interactions": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-essentials": "6.4.21",
+    "@storybook/addon-interactions": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
     "@storybook/jest": "^0.0.5",
     "@storybook/testing-library": "^0.0.7",
-    "@storybook/vue3": "6.4.20",
+    "@storybook/vue3": "6.4.21",
     "@vue/cli-plugin-babel": "~4.5.0",
     "@vue/cli-plugin-typescript": "~4.5.0",
     "@vue/cli-service": "~4.5.0",
diff --git a/examples/vue-cli/package.json b/examples/vue-cli/package.json
index 37ec210752d1..3210b70c4ef7 100644
--- a/examples/vue-cli/package.json
+++ b/examples/vue-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-cli-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "vue-cli-service build",
@@ -15,11 +15,11 @@
     "vue-property-decorator": "^9.1.2"
   },
   "devDependencies": {
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-essentials": "6.4.20",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-essentials": "6.4.21",
     "@storybook/preset-scss": "^1.0.3",
-    "@storybook/source-loader": "6.4.20",
-    "@storybook/vue": "6.4.20",
+    "@storybook/source-loader": "6.4.21",
+    "@storybook/vue": "6.4.21",
     "@vue/cli-plugin-babel": "~4.3.1",
     "@vue/cli-plugin-typescript": "~4.3.1",
     "@vue/cli-service": "~4.3.1",
diff --git a/examples/vue-kitchen-sink/package.json b/examples/vue-kitchen-sink/package.json
index 9e1690e63e38..2eaedf77c99d 100644
--- a/examples/vue-kitchen-sink/package.json
+++ b/examples/vue-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-example",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "scripts": {
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules",
@@ -14,21 +14,21 @@
   },
   "devDependencies": {
     "@babel/core": "^7.12.10",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-interactions": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/addons": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-interactions": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/addons": "6.4.21",
     "@storybook/jest": "^0.0.5",
-    "@storybook/source-loader": "6.4.20",
+    "@storybook/source-loader": "6.4.21",
     "@storybook/testing-library": "^0.0.7",
-    "@storybook/vue": "6.4.20",
+    "@storybook/vue": "6.4.21",
     "@vue/babel-preset-jsx": "^1.2.4",
     "babel-loader": "^8.0.0",
     "cross-env": "^7.0.3",
diff --git a/examples/web-components-kitchen-sink/package.json b/examples/web-components-kitchen-sink/package.json
index d5461b73403c..3ff7b7d9c308 100644
--- a/examples/web-components-kitchen-sink/package.json
+++ b/examples/web-components-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "web-components-kitchen-sink",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "private": true,
   "description": "",
   "keywords": [],
@@ -61,17 +61,17 @@
   },
   "devDependencies": {
     "@custom-elements-manifest/analyzer": "^0.5.7",
-    "@storybook/addon-a11y": "6.4.20",
-    "@storybook/addon-actions": "6.4.20",
-    "@storybook/addon-backgrounds": "6.4.20",
-    "@storybook/addon-controls": "6.4.20",
-    "@storybook/addon-docs": "6.4.20",
-    "@storybook/addon-jest": "6.4.20",
-    "@storybook/addon-links": "6.4.20",
-    "@storybook/addon-storyshots": "6.4.20",
-    "@storybook/addon-storysource": "6.4.20",
-    "@storybook/addon-viewport": "6.4.20",
-    "@storybook/web-components": "6.4.20",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-backgrounds": "6.4.21",
+    "@storybook/addon-controls": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-jest": "6.4.21",
+    "@storybook/addon-links": "6.4.21",
+    "@storybook/addon-storyshots": "6.4.21",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addon-viewport": "6.4.21",
+    "@storybook/web-components": "6.4.21",
     "global": "^4.4.0",
     "jest": "^27.3.1",
     "typescript": "4.2.4"
diff --git a/lerna.json b/lerna.json
index 595a6f34a616..7a4a89a01ede 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,5 +2,5 @@
   "npmClient": "yarn",
   "useWorkspaces": true,
   "registry": "https://registry.npmjs.org",
-  "version": "6.4.20"
+  "version": "6.4.21"
 }
diff --git a/lib/addons/package.json b/lib/addons/package.json
index 42e2ed2373f4..b6a8bc0826dc 100644
--- a/lib/addons/package.json
+++ b/lib/addons/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addons",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook addons store",
   "keywords": [
     "storybook"
@@ -40,13 +40,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/api": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/api": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/router": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/router": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/lib/api/package.json b/lib/api/package.json
index 78d62e4f3fb2..c27c33a75150 100644
--- a/lib/api/package.json
+++ b/lib/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/api",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Core Storybook API & Context",
   "keywords": [
     "storybook"
@@ -38,13 +38,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/router": "6.4.20",
+    "@storybook/router": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "core-js": "^3.8.2",
     "fast-deep-equal": "^3.1.3",
     "global": "^4.4.0",
diff --git a/lib/builder-webpack4/package.json b/lib/builder-webpack4/package.json
index c1ba34c1ce4d..dbba69540195 100644
--- a/lib/builder-webpack4/package.json
+++ b/lib/builder-webpack4/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/builder-webpack4",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -61,22 +61,22 @@
     "@babel/preset-env": "^7.12.11",
     "@babel/preset-react": "^7.12.10",
     "@babel/preset-typescript": "^7.12.7",
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/channel-postmessage": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/router": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/channel-postmessage": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/router": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/store": "6.4.20",
-    "@storybook/theming": "6.4.20",
-    "@storybook/ui": "6.4.20",
+    "@storybook/store": "6.4.21",
+    "@storybook/theming": "6.4.21",
+    "@storybook/ui": "6.4.21",
     "@types/node": "^14.0.10",
     "@types/webpack": "^4.41.26",
     "autoprefixer": "^9.8.6",
diff --git a/lib/builder-webpack5/package.json b/lib/builder-webpack5/package.json
index ed3bd9f4dfa5..a29db293abf5 100644
--- a/lib/builder-webpack5/package.json
+++ b/lib/builder-webpack5/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/builder-webpack5",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -60,21 +60,21 @@
     "@babel/preset-env": "^7.12.11",
     "@babel/preset-react": "^7.12.10",
     "@babel/preset-typescript": "^7.12.7",
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/channel-postmessage": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/router": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/channel-postmessage": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/router": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/store": "6.4.20",
-    "@storybook/theming": "6.4.20",
+    "@storybook/store": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "@types/node": "^14.0.10",
     "babel-loader": "^8.0.0",
     "babel-plugin-macros": "^3.0.1",
diff --git a/lib/channel-postmessage/package.json b/lib/channel-postmessage/package.json
index dbb8f3858b61..6ad0352dbab5 100644
--- a/lib/channel-postmessage/package.json
+++ b/lib/channel-postmessage/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channel-postmessage",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
@@ -40,9 +40,9 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "qs": "^6.10.0",
diff --git a/lib/channel-websocket/package.json b/lib/channel-websocket/package.json
index 2946227d364a..154c1753b16a 100644
--- a/lib/channel-websocket/package.json
+++ b/lib/channel-websocket/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channel-websocket",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
@@ -40,8 +40,8 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
     "telejson": "^5.3.2"
diff --git a/lib/channels/package.json b/lib/channels/package.json
index 35c23525b4fe..0c257ff5ca3a 100644
--- a/lib/channels/package.json
+++ b/lib/channels/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channels",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/cli-sb/package.json b/lib/cli-sb/package.json
index f73f12d80eed..1143856101b2 100644
--- a/lib/cli-sb/package.json
+++ b/lib/cli-sb/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sb",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook CLI",
   "keywords": [
     "storybook"
@@ -24,7 +24,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/cli": "6.4.20"
+    "@storybook/cli": "6.4.21"
   },
   "publishConfig": {
     "access": "public"
diff --git a/lib/cli-storybook/package.json b/lib/cli-storybook/package.json
index 495283c69e26..0916de243235 100644
--- a/lib/cli-storybook/package.json
+++ b/lib/cli-storybook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "storybook",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook CLI",
   "keywords": [
     "storybook"
@@ -27,7 +27,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/cli": "6.4.20"
+    "@storybook/cli": "6.4.21"
   },
   "publishConfig": {
     "access": "public"
diff --git a/lib/cli/package.json b/lib/cli/package.json
index b722f20b7c8c..951aa2185de2 100644
--- a/lib/cli/package.json
+++ b/lib/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/cli",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook's CLI - easiest method of adding storybook to your projects",
   "keywords": [
     "cli",
@@ -48,10 +48,10 @@
   "dependencies": {
     "@babel/core": "^7.12.10",
     "@babel/preset-env": "^7.12.11",
-    "@storybook/codemod": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/csf-tools": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/codemod": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/csf-tools": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
     "@storybook/semver": "^7.3.2",
     "boxen": "^5.1.2",
     "chalk": "^4.1.0",
@@ -76,7 +76,7 @@
     "update-notifier": "^5.0.1"
   },
   "devDependencies": {
-    "@storybook/client-api": "6.4.20",
+    "@storybook/client-api": "6.4.21",
     "@types/cross-spawn": "^6.0.2",
     "@types/prompts": "^2.0.9",
     "@types/puppeteer-core": "^2.1.0",
diff --git a/lib/client-api/package.json b/lib/client-api/package.json
index 815b670530c4..be8b75a879ee 100644
--- a/lib/client-api/package.json
+++ b/lib/client-api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/client-api",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook Client API",
   "keywords": [
     "storybook"
@@ -40,13 +40,13 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/channel-postmessage": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/channel-postmessage": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/qs": "^6.9.5",
     "@types/webpack-env": "^1.16.0",
     "core-js": "^3.8.2",
diff --git a/lib/client-logger/package.json b/lib/client-logger/package.json
index 6b845ea3e93b..b0d6e3d44ce4 100644
--- a/lib/client-logger/package.json
+++ b/lib/client-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/client-logger",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/codemod/package.json b/lib/codemod/package.json
index cf00cbe83eaa..60145681da82 100644
--- a/lib/codemod/package.json
+++ b/lib/codemod/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/codemod",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "A collection of codemod scripts written with JSCodeshift",
   "keywords": [
     "storybook"
@@ -44,8 +44,8 @@
     "@babel/types": "^7.12.11",
     "@mdx-js/mdx": "^1.6.22",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/csf-tools": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/csf-tools": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
     "core-js": "^3.8.2",
     "cross-spawn": "^7.0.3",
     "globby": "^11.0.2",
diff --git a/lib/components/package.json b/lib/components/package.json
index 82b1c894d4d5..cd774ce37c75 100644
--- a/lib/components/package.json
+++ b/lib/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/components",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Core Storybook Components",
   "keywords": [
     "storybook"
@@ -41,9 +41,9 @@
   },
   "dependencies": {
     "@popperjs/core": "^2.6.0",
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/client-logger": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "@types/color-convert": "^2.0.0",
     "@types/overlayscrollbars": "^1.12.0",
     "@types/react-syntax-highlighter": "11.0.5",
diff --git a/lib/core-client/package.json b/lib/core-client/package.json
index af3b087605db..a907d97489fc 100644
--- a/lib/core-client/package.json
+++ b/lib/core-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core-client",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -40,16 +40,16 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/channel-postmessage": "6.4.20",
-    "@storybook/channel-websocket": "6.4.20",
-    "@storybook/client-api": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/channel-postmessage": "6.4.21",
+    "@storybook/channel-websocket": "6.4.21",
+    "@storybook/client-api": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/preview-web": "6.4.20",
-    "@storybook/store": "6.4.20",
-    "@storybook/ui": "6.4.20",
+    "@storybook/preview-web": "6.4.21",
+    "@storybook/store": "6.4.21",
+    "@storybook/ui": "6.4.21",
     "airbnb-js-shims": "^2.2.1",
     "ansi-to-html": "^0.6.11",
     "core-js": "^3.8.2",
diff --git a/lib/core-common/package.json b/lib/core-common/package.json
index 7d6613e5c196..53f29cccd58b 100644
--- a/lib/core-common/package.json
+++ b/lib/core-common/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core-common",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -61,7 +61,7 @@
     "@babel/preset-react": "^7.12.10",
     "@babel/preset-typescript": "^7.12.7",
     "@babel/register": "^7.12.1",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/node-logger": "6.4.21",
     "@storybook/semver": "^7.3.2",
     "@types/node": "^14.0.10",
     "@types/pretty-hrtime": "^1.0.0",
diff --git a/lib/core-events/package.json b/lib/core-events/package.json
index d8dd1c3d806c..30ace28b5646 100644
--- a/lib/core-events/package.json
+++ b/lib/core-events/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core-events",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Event names used in storybook core",
   "keywords": [
     "storybook"
diff --git a/lib/core-server/package.json b/lib/core-server/package.json
index 9cbaf9340919..0c2fda47aa3c 100644
--- a/lib/core-server/package.json
+++ b/lib/core-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core-server",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -41,16 +41,16 @@
   },
   "dependencies": {
     "@discoveryjs/json-ext": "^0.5.3",
-    "@storybook/builder-webpack4": "6.4.20",
-    "@storybook/core-client": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/builder-webpack4": "6.4.21",
+    "@storybook/core-client": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/csf-tools": "6.4.20",
-    "@storybook/manager-webpack4": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
+    "@storybook/csf-tools": "6.4.21",
+    "@storybook/manager-webpack4": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "@types/node": "^14.0.10",
     "@types/node-fetch": "^2.5.7",
     "@types/pretty-hrtime": "^1.0.0",
@@ -84,7 +84,7 @@
     "ws": "^8.2.3"
   },
   "devDependencies": {
-    "@storybook/builder-webpack5": "6.4.20",
+    "@storybook/builder-webpack5": "6.4.21",
     "@types/compression": "^1.7.0",
     "@types/ip": "^1.1.0",
     "@types/serve-favicon": "^2.5.2",
@@ -113,4 +113,4 @@
   },
   "gitHead": "c91a26aff48ee9c5ee555c4788513c6cef16e0a9",
   "sbmodern": "dist/modern/index.js"
-}
\ No newline at end of file
+}
diff --git a/lib/core/package.json b/lib/core/package.json
index f25a3ce687dc..2df4f93881a9 100644
--- a/lib/core/package.json
+++ b/lib/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -40,8 +40,8 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/core-client": "6.4.20",
-    "@storybook/core-server": "6.4.20"
+    "@storybook/core-client": "6.4.21",
+    "@storybook/core-server": "6.4.21"
   },
   "peerDependencies": {
     "@storybook/builder-webpack5": "6.4.21",
@@ -62,4 +62,4 @@
   },
   "gitHead": "c91a26aff48ee9c5ee555c4788513c6cef16e0a9",
   "sbmodern": "dist/modern/index.js"
-}
\ No newline at end of file
+}
diff --git a/lib/csf-tools/package.json b/lib/csf-tools/package.json
index dfe335739055..5612c4d66fc9 100644
--- a/lib/csf-tools/package.json
+++ b/lib/csf-tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/csf-tools",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/instrumenter/package.json b/lib/instrumenter/package.json
index a129d16a3ddd..6682e1a3cd3f 100644
--- a/lib/instrumenter/package.json
+++ b/lib/instrumenter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/instrumenter",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
@@ -40,9 +40,9 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "global": "^4.4.0"
   },
   "publishConfig": {
diff --git a/lib/manager-webpack4/package.json b/lib/manager-webpack4/package.json
index c55baaa90cd1..e12366befd62 100644
--- a/lib/manager-webpack4/package.json
+++ b/lib/manager-webpack4/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/manager-webpack4",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -45,12 +45,12 @@
     "@babel/core": "^7.12.10",
     "@babel/plugin-transform-template-literals": "^7.12.1",
     "@babel/preset-react": "^7.12.10",
-    "@storybook/addons": "6.4.20",
-    "@storybook/core-client": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/theming": "6.4.20",
-    "@storybook/ui": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core-client": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/theming": "6.4.21",
+    "@storybook/ui": "6.4.21",
     "@types/node": "^14.0.10",
     "@types/webpack": "^4.41.26",
     "babel-loader": "^8.0.0",
diff --git a/lib/manager-webpack5/package.json b/lib/manager-webpack5/package.json
index a5189285ddfa..d579d8f69e25 100644
--- a/lib/manager-webpack5/package.json
+++ b/lib/manager-webpack5/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/manager-webpack5",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -45,12 +45,12 @@
     "@babel/core": "^7.12.10",
     "@babel/plugin-transform-template-literals": "^7.12.1",
     "@babel/preset-react": "^7.12.10",
-    "@storybook/addons": "6.4.20",
-    "@storybook/core-client": "6.4.20",
-    "@storybook/core-common": "6.4.20",
-    "@storybook/node-logger": "6.4.20",
-    "@storybook/theming": "6.4.20",
-    "@storybook/ui": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/core-client": "6.4.21",
+    "@storybook/core-common": "6.4.21",
+    "@storybook/node-logger": "6.4.21",
+    "@storybook/theming": "6.4.21",
+    "@storybook/ui": "6.4.21",
     "@types/node": "^14.0.10",
     "babel-loader": "^8.0.0",
     "case-sensitive-paths-webpack-plugin": "^2.3.0",
diff --git a/lib/node-logger/package.json b/lib/node-logger/package.json
index de8275a4989f..07a9654d9ec3 100644
--- a/lib/node-logger/package.json
+++ b/lib/node-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/node-logger",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/postinstall/package.json b/lib/postinstall/package.json
index ad09fd511b06..57a618ad3440 100644
--- a/lib/postinstall/package.json
+++ b/lib/postinstall/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/postinstall",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Storybook addons postinstall utilities",
   "keywords": [
     "api",
diff --git a/lib/preview-web/package.json b/lib/preview-web/package.json
index c13ccbdf6733..ffa99578f358 100644
--- a/lib/preview-web/package.json
+++ b/lib/preview-web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/preview-web",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
@@ -40,12 +40,12 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/channel-postmessage": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/channel-postmessage": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
-    "@storybook/store": "6.4.20",
+    "@storybook/store": "6.4.21",
     "ansi-to-html": "^0.6.11",
     "core-js": "^3.8.2",
     "global": "^4.4.0",
diff --git a/lib/router/package.json b/lib/router/package.json
index 24642c875602..635d2704fc86 100644
--- a/lib/router/package.json
+++ b/lib/router/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/router",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Core Storybook Router",
   "keywords": [
     "storybook"
@@ -40,7 +40,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/client-logger": "6.4.21",
     "core-js": "^3.8.2",
     "fast-deep-equal": "^3.1.3",
     "global": "^4.4.0",
diff --git a/lib/source-loader/package.json b/lib/source-loader/package.json
index 0c7da8c23c0b..1e043413c921 100644
--- a/lib/source-loader/package.json
+++ b/lib/source-loader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/source-loader",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Source loader",
   "keywords": [
     "lib",
@@ -41,8 +41,8 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
     "core-js": "^3.8.2",
     "estraverse": "^5.2.0",
diff --git a/lib/store/package.json b/lib/store/package.json
index 115b6ad18c99..89a13041dcbc 100644
--- a/lib/store/package.json
+++ b/lib/store/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/store",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "",
   "keywords": [
     "storybook"
@@ -40,9 +40,9 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/core-events": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/core-events": "6.4.21",
     "@storybook/csf": "0.0.2--canary.87bc651.0",
     "core-js": "^3.8.2",
     "fast-deep-equal": "^3.1.3",
diff --git a/lib/theming/package.json b/lib/theming/package.json
index 516800060513..b4c70cfe1bbb 100644
--- a/lib/theming/package.json
+++ b/lib/theming/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/theming",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Core Storybook Components",
   "keywords": [
     "storybook"
@@ -43,7 +43,7 @@
     "@emotion/core": "^10.1.1",
     "@emotion/is-prop-valid": "^0.8.6",
     "@emotion/styled": "^10.0.27",
-    "@storybook/client-logger": "6.4.20",
+    "@storybook/client-logger": "6.4.21",
     "core-js": "^3.8.2",
     "deep-object-diff": "^1.1.0",
     "emotion-theming": "^10.0.27",
diff --git a/lib/ui/package.json b/lib/ui/package.json
index ca4c0091a4b6..3b4b867626d6 100644
--- a/lib/ui/package.json
+++ b/lib/ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/ui",
-  "version": "6.4.20",
+  "version": "6.4.21",
   "description": "Core Storybook UI",
   "keywords": [
     "storybook"
@@ -41,15 +41,15 @@
   },
   "dependencies": {
     "@emotion/core": "^10.1.1",
-    "@storybook/addons": "6.4.20",
-    "@storybook/api": "6.4.20",
-    "@storybook/channels": "6.4.20",
-    "@storybook/client-logger": "6.4.20",
-    "@storybook/components": "6.4.20",
-    "@storybook/core-events": "6.4.20",
-    "@storybook/router": "6.4.20",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/channels": "6.4.21",
+    "@storybook/client-logger": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/router": "6.4.21",
     "@storybook/semver": "^7.3.2",
-    "@storybook/theming": "6.4.20",
+    "@storybook/theming": "6.4.21",
     "copy-to-clipboard": "^3.3.1",
     "core-js": "^3.8.2",
     "core-js-pure": "^3.8.2",