diff --git a/.pubignore b/.pubignore
new file mode 100644
index 000000000..2fbab300a
--- /dev/null
+++ b/.pubignore
@@ -0,0 +1,19 @@
+# This should be identical to .gitignore except that it doesn't exclude
+# generated protobuf files.
+
+.buildlog
+.DS_Store
+.idea
+.pub/
+.dart_tool/
+.settings/
+.sass-cache/
+build/
+packages
+.packages
+pubspec.lock
+package-lock.json
+/benchmark/source
+node_modules/
+/doc/api
+/pkg/*/doc/api
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c81a93cd..9b3d0fb9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,13 @@
-## 1.64.2
+## 1.64.3
 
 ### Dart API
 
 * Include protocol buffer definitions when uploading the `sass` package to pub.
 
+## 1.64.2
+
+* No user-visible changes.
+
 ## 1.64.1
 
 ### Embedded Sass
diff --git a/pubspec.yaml b/pubspec.yaml
index 5f038212d..db49b8fde 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: sass
-version: 1.64.2
+version: 1.64.3-dev
 description: A Sass implementation in Dart.
 homepage: https://github.com/sass/dart-sass