diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e0c0f0..5d32db8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 5.0.0
+## 4.0.3
 
 * Widen `package:protobuf` constraint to allow version 4.0.0.
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 70e6f8c..e08d9c6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: grpc
-version: 5.0.0
+version: 4.0.3
 description: Dart implementation of gRPC, a high performance, open-source universal RPC framework.
 repository: https://github.com/grpc/grpc-dart