diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5c1adf80..53a71009 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 * 支持gcm推送点击
 
+## 3.8.3+3
+* 修复安卓下resendMessage方法发送失败时不回调onError。
+
 ## 3.8.3+2
 * 增加群组已读回执；
 * 不在提供EMContact类，直接返回String类型username;
diff --git a/README.md b/README.md
index ba0e5317..3ea3e48f 100644
--- a/README.md
+++ b/README.md
@@ -23,16 +23,12 @@ Demo中使用的音视频是针对声网音视频封装的[EaseCallKit](https://
 
 进入console -> 添加应用 -> Appkey 获取`Appkey`。
 
-#### 通过git集成  
+#### 通过pubdev集成
 
 1. 修改 `pubspec.yaml`;
-
 ```dart
 dependencies:
-  im_flutter_sdk:  
-    git:  
-      url: https://github.com/easemob/im_flutter_sdk.git 
-      ref: flutter2_stable
+  im_flutter_sdk: ^3.8.3+3
 ```
 
 2. 执行`flutter pub get`;
@@ -42,22 +38,26 @@ dependencies:
 import 'package:im_flutter_sdk/im_flutter_sdk.dart'
 ```
 
-#### 本地集成  
 
-1. 先将SDK clone 或者 download 到本地项目中;
-2. 修改 `pubspec.yaml`;
+####  通过git集成  
+
+1. 修改 `pubspec.yaml`;
 
 ```dart
 dependencies:
   im_flutter_sdk:  
-    path : /本地路径/im_flutter_sdk
+    git:  
+      url: https://github.com/easemob/im_flutter_sdk.git 
+      ref: flutter2_stable
 ```
-3. 执行`flutter pub get`;
-4. 导入头文件:
 
-``` dart
+2. 执行`flutter pub get`;
+3. 导入头文件:
+
+```dart
 import 'package:im_flutter_sdk/im_flutter_sdk.dart'
 ```
+
 ## SDK讲解
 
 - `EMClient` 用于管理sdk各个模块和一些账号相关的操作，如注册，登录，退出;