diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b21034..5e39c10 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 3.8.1+1
+
+- [Bug fixes and performance enhancements.](https://github.com/openimsdk/openim-sdk-core/releases/tag/v3.8.1)
+
 ## 3.8.1
 
 - [Bug fixes and performance enhancements.](https://github.com/openimsdk/openim-sdk-core/releases/tag/v3.8.1)
diff --git a/lib/src/openim.dart b/lib/src/openim.dart
index d2a6890..133c04f 100644
--- a/lib/src/openim.dart
+++ b/lib/src/openim.dart
@@ -2,7 +2,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_openim_sdk/flutter_openim_sdk.dart';
 
 class OpenIM {
-  static const version = '3.8.1';
+  static const version = '3.8.1+1';
 
   static const _channel = MethodChannel('flutter_openim_sdk');
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 6984d6a..25b95ec 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_openim_sdk
 description: An instant messaging plug-in that supports Android and IOS. And the server is also all open source.
-version: 3.8.1
+version: 3.8.1+1
 homepage: https://www.openim.io
 repository: https://github.com/openimsdk/open-im-sdk-flutter