diff --git a/protobuf/CHANGELOG.md b/protobuf/CHANGELOG.md
index c18f450fa..f48bd8bc5 100644
--- a/protobuf/CHANGELOG.md
+++ b/protobuf/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 3.1.0-dev
+## 3.1.0
 
 * `CodedBufferReader` `readBytes` now copies the returned bytes to avoid
   accidental sharing of the input buffer with the returned `Uint8List`. New
diff --git a/protobuf/pubspec.yaml b/protobuf/pubspec.yaml
index b527bc7a9..00faaf7f1 100644
--- a/protobuf/pubspec.yaml
+++ b/protobuf/pubspec.yaml
@@ -1,5 +1,5 @@
 name: protobuf
-version: 3.1.0-dev
+version: 3.1.0
 description: >-
   Runtime library for protocol buffers support. Use with package:protoc_plugin
   to generate dart code for your '.proto' files.
diff --git a/protoc_plugin/CHANGELOG.md b/protoc_plugin/CHANGELOG.md
index 15a7c6207..95cda87a4 100644
--- a/protoc_plugin/CHANGELOG.md
+++ b/protoc_plugin/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 21.1.0-dev
+## 21.1.0
 
 * Generate code comments for annotated protobuf inputs. ([#161])
 * Generate message constructor arguments by default again. New flag
diff --git a/protoc_plugin/pubspec.yaml b/protoc_plugin/pubspec.yaml
index 8976932a3..3b79553fe 100644
--- a/protoc_plugin/pubspec.yaml
+++ b/protoc_plugin/pubspec.yaml
@@ -1,5 +1,5 @@
 name: protoc_plugin
-version: 21.1.0-dev
+version: 21.1.0
 description: A protobuf protoc compiler plugin used to generate Dart code.
 repository: https://github.com/google/protobuf.dart/tree/master/protoc_plugin