diff --git a/android/build.gradle b/android/build.gradle
index 37cacc0..944b98b 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -50,5 +50,5 @@ android {
 }
 
 dependencies {
-    implementation 'io.openim:core-sdk:3.8.3@aar'
+    implementation 'io.openim:core-sdk:3.8.3-patch2@aar'
 }
\ No newline at end of file
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 319dbae..56cbd94 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -76,7 +76,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "3.8.3"
+    version: "3.8.3+2"
   flutter_test:
     dependency: "direct dev"
     description: flutter
diff --git a/ios/flutter_openim_sdk.podspec b/ios/flutter_openim_sdk.podspec
index ddccbd5..81d68a3 100644
--- a/ios/flutter_openim_sdk.podspec
+++ b/ios/flutter_openim_sdk.podspec
@@ -17,7 +17,7 @@ A new Flutter project.
   s.dependency 'Flutter'
   s.platform = :ios, '11.0'
 
-  s.dependency 'OpenIMSDKCore','3.8.3'
+  s.dependency 'OpenIMSDKCore','3.8.3+2'
   s.static_framework = true
   s.library = 'resolv'
 
diff --git a/lib/src/openim.dart b/lib/src/openim.dart
index 970acab..6bb69d8 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 = '3.8.3';
+  static const version = '3.8.3+2';
 
   static const _channel = MethodChannel('flutter_openim_sdk');
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 6434e7b..651869d 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: 3.8.3
+version: 3.8.3+2
 homepage: https://www.openim.io
 repository: https://github.com/openimsdk/open-im-sdk-flutter