diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb788df3fa8..e6518254033 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## 0.21.1
 
 * Fix a regression with `--keep-names` ([#3756](https://github.com/evanw/esbuild/issues/3756))
 
diff --git a/cmd/esbuild/version.go b/cmd/esbuild/version.go
index 94b1efbb712..4e7d1436d23 100644
--- a/cmd/esbuild/version.go
+++ b/cmd/esbuild/version.go
@@ -1,3 +1,3 @@
 package main
 
-const esbuildVersion = "0.21.0"
+const esbuildVersion = "0.21.1"
diff --git a/npm/@esbuild/aix-ppc64/package.json b/npm/@esbuild/aix-ppc64/package.json
index 4f91dc5ec8b..63d70d4c5ef 100644
--- a/npm/@esbuild/aix-ppc64/package.json
+++ b/npm/@esbuild/aix-ppc64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/aix-ppc64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The IBM AIX PowerPC 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/android-arm/package.json b/npm/@esbuild/android-arm/package.json
index 842e98d4b2c..feed438b3bf 100644
--- a/npm/@esbuild/android-arm/package.json
+++ b/npm/@esbuild/android-arm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/android-arm",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "A WebAssembly shim for esbuild on Android ARM.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/android-arm64/package.json b/npm/@esbuild/android-arm64/package.json
index 1a6fae267ff..1e30ce3ce29 100644
--- a/npm/@esbuild/android-arm64/package.json
+++ b/npm/@esbuild/android-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/android-arm64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Android ARM 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/android-x64/package.json b/npm/@esbuild/android-x64/package.json
index a8f58e5528f..a1242e71b81 100644
--- a/npm/@esbuild/android-x64/package.json
+++ b/npm/@esbuild/android-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/android-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "A WebAssembly shim for esbuild on Android x64.",
   "repository": "https://github.com/evanw/esbuild",
   "license": "MIT",
diff --git a/npm/@esbuild/darwin-arm64/package.json b/npm/@esbuild/darwin-arm64/package.json
index 23db271cd67..1f3c559f2e4 100644
--- a/npm/@esbuild/darwin-arm64/package.json
+++ b/npm/@esbuild/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/darwin-arm64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The macOS ARM 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/darwin-x64/package.json b/npm/@esbuild/darwin-x64/package.json
index 9f1ae2233eb..616420eea56 100644
--- a/npm/@esbuild/darwin-x64/package.json
+++ b/npm/@esbuild/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/darwin-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The macOS 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/freebsd-arm64/package.json b/npm/@esbuild/freebsd-arm64/package.json
index cea42f59b14..f9f32d80632 100644
--- a/npm/@esbuild/freebsd-arm64/package.json
+++ b/npm/@esbuild/freebsd-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/freebsd-arm64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The FreeBSD ARM 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/freebsd-x64/package.json b/npm/@esbuild/freebsd-x64/package.json
index 0e2d8a81132..2adf265661b 100644
--- a/npm/@esbuild/freebsd-x64/package.json
+++ b/npm/@esbuild/freebsd-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/freebsd-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The FreeBSD 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-arm/package.json b/npm/@esbuild/linux-arm/package.json
index 33c12945da0..bbb5d25981e 100644
--- a/npm/@esbuild/linux-arm/package.json
+++ b/npm/@esbuild/linux-arm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-arm",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux ARM binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-arm64/package.json b/npm/@esbuild/linux-arm64/package.json
index 7e7c72f8424..3b64b137c8b 100644
--- a/npm/@esbuild/linux-arm64/package.json
+++ b/npm/@esbuild/linux-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-arm64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux ARM 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-ia32/package.json b/npm/@esbuild/linux-ia32/package.json
index f27b07d6d5a..b35156ac3dd 100644
--- a/npm/@esbuild/linux-ia32/package.json
+++ b/npm/@esbuild/linux-ia32/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-ia32",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux 32-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-loong64/package.json b/npm/@esbuild/linux-loong64/package.json
index 445c0d13b0b..d0e7b0bc503 100644
--- a/npm/@esbuild/linux-loong64/package.json
+++ b/npm/@esbuild/linux-loong64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-loong64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux LoongArch 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-mips64el/package.json b/npm/@esbuild/linux-mips64el/package.json
index feb9c34d19b..08bb7e89eb2 100644
--- a/npm/@esbuild/linux-mips64el/package.json
+++ b/npm/@esbuild/linux-mips64el/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-mips64el",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux MIPS 64-bit Little Endian binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-ppc64/package.json b/npm/@esbuild/linux-ppc64/package.json
index a443bfc2ed2..eb45be8d2d8 100644
--- a/npm/@esbuild/linux-ppc64/package.json
+++ b/npm/@esbuild/linux-ppc64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-ppc64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux PowerPC 64-bit Little Endian binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-riscv64/package.json b/npm/@esbuild/linux-riscv64/package.json
index f1d093713ac..19305c66fc5 100644
--- a/npm/@esbuild/linux-riscv64/package.json
+++ b/npm/@esbuild/linux-riscv64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-riscv64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux RISC-V 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-s390x/package.json b/npm/@esbuild/linux-s390x/package.json
index 040c367ab4b..2b59d25571a 100644
--- a/npm/@esbuild/linux-s390x/package.json
+++ b/npm/@esbuild/linux-s390x/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-s390x",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux IBM Z 64-bit Big Endian binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/linux-x64/package.json b/npm/@esbuild/linux-x64/package.json
index 097a63630a9..2fbb6bd3768 100644
--- a/npm/@esbuild/linux-x64/package.json
+++ b/npm/@esbuild/linux-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/linux-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Linux 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/netbsd-x64/package.json b/npm/@esbuild/netbsd-x64/package.json
index c7a09f72c0c..e3f955fd754 100644
--- a/npm/@esbuild/netbsd-x64/package.json
+++ b/npm/@esbuild/netbsd-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/netbsd-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The NetBSD AMD64 binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/openbsd-x64/package.json b/npm/@esbuild/openbsd-x64/package.json
index bfff96592f9..32540e7ea93 100644
--- a/npm/@esbuild/openbsd-x64/package.json
+++ b/npm/@esbuild/openbsd-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/openbsd-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The OpenBSD 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/sunos-x64/package.json b/npm/@esbuild/sunos-x64/package.json
index 0c3f80793f5..2f2eec42a0a 100644
--- a/npm/@esbuild/sunos-x64/package.json
+++ b/npm/@esbuild/sunos-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/sunos-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The illumos 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/win32-arm64/package.json b/npm/@esbuild/win32-arm64/package.json
index 4c65621df84..2567291db0c 100644
--- a/npm/@esbuild/win32-arm64/package.json
+++ b/npm/@esbuild/win32-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/win32-arm64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Windows ARM 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/win32-ia32/package.json b/npm/@esbuild/win32-ia32/package.json
index a2c2dbb2315..2f672dafb1e 100644
--- a/npm/@esbuild/win32-ia32/package.json
+++ b/npm/@esbuild/win32-ia32/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/win32-ia32",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Windows 32-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/@esbuild/win32-x64/package.json b/npm/@esbuild/win32-x64/package.json
index b827dd82764..fd2f5690b16 100644
--- a/npm/@esbuild/win32-x64/package.json
+++ b/npm/@esbuild/win32-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@esbuild/win32-x64",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The Windows 64-bit binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/esbuild-wasm/package.json b/npm/esbuild-wasm/package.json
index 8806c338934..55f04bd7539 100644
--- a/npm/esbuild-wasm/package.json
+++ b/npm/esbuild-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "esbuild-wasm",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "The cross-platform WebAssembly binary for esbuild, a JavaScript bundler.",
   "repository": {
     "type": "git",
diff --git a/npm/esbuild/package.json b/npm/esbuild/package.json
index 6f50788b96b..fb0a729dbdd 100644
--- a/npm/esbuild/package.json
+++ b/npm/esbuild/package.json
@@ -1,6 +1,6 @@
 {
   "name": "esbuild",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "description": "An extremely fast JavaScript and CSS bundler and minifier.",
   "repository": {
     "type": "git",
@@ -18,29 +18,29 @@
     "esbuild": "bin/esbuild"
   },
   "optionalDependencies": {
-    "@esbuild/aix-ppc64": "0.21.0",
-    "@esbuild/android-arm": "0.21.0",
-    "@esbuild/android-arm64": "0.21.0",
-    "@esbuild/android-x64": "0.21.0",
-    "@esbuild/darwin-arm64": "0.21.0",
-    "@esbuild/darwin-x64": "0.21.0",
-    "@esbuild/freebsd-arm64": "0.21.0",
-    "@esbuild/freebsd-x64": "0.21.0",
-    "@esbuild/linux-arm": "0.21.0",
-    "@esbuild/linux-arm64": "0.21.0",
-    "@esbuild/linux-ia32": "0.21.0",
-    "@esbuild/linux-loong64": "0.21.0",
-    "@esbuild/linux-mips64el": "0.21.0",
-    "@esbuild/linux-ppc64": "0.21.0",
-    "@esbuild/linux-riscv64": "0.21.0",
-    "@esbuild/linux-s390x": "0.21.0",
-    "@esbuild/linux-x64": "0.21.0",
-    "@esbuild/netbsd-x64": "0.21.0",
-    "@esbuild/openbsd-x64": "0.21.0",
-    "@esbuild/sunos-x64": "0.21.0",
-    "@esbuild/win32-arm64": "0.21.0",
-    "@esbuild/win32-ia32": "0.21.0",
-    "@esbuild/win32-x64": "0.21.0"
+    "@esbuild/aix-ppc64": "0.21.1",
+    "@esbuild/android-arm": "0.21.1",
+    "@esbuild/android-arm64": "0.21.1",
+    "@esbuild/android-x64": "0.21.1",
+    "@esbuild/darwin-arm64": "0.21.1",
+    "@esbuild/darwin-x64": "0.21.1",
+    "@esbuild/freebsd-arm64": "0.21.1",
+    "@esbuild/freebsd-x64": "0.21.1",
+    "@esbuild/linux-arm": "0.21.1",
+    "@esbuild/linux-arm64": "0.21.1",
+    "@esbuild/linux-ia32": "0.21.1",
+    "@esbuild/linux-loong64": "0.21.1",
+    "@esbuild/linux-mips64el": "0.21.1",
+    "@esbuild/linux-ppc64": "0.21.1",
+    "@esbuild/linux-riscv64": "0.21.1",
+    "@esbuild/linux-s390x": "0.21.1",
+    "@esbuild/linux-x64": "0.21.1",
+    "@esbuild/netbsd-x64": "0.21.1",
+    "@esbuild/openbsd-x64": "0.21.1",
+    "@esbuild/sunos-x64": "0.21.1",
+    "@esbuild/win32-arm64": "0.21.1",
+    "@esbuild/win32-ia32": "0.21.1",
+    "@esbuild/win32-x64": "0.21.1"
   },
   "license": "MIT"
 }
diff --git a/version.txt b/version.txt
index 885415662ff..a67cebaf7ff 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.21.0
+0.21.1