diff --git a/README.md b/README.md
index d4e799c..67b79e3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # flutter_openim_sdk
-<img src="https://github.com/OpenIMSDK/OpenIM-Docs/blob/main/docs/images/WechatIMG20.jpeg" alt="image" style="width: 300px; " />
+<img src="https://github.com/OpenIMSDK/OpenIM-Docs/blob/main/docs/images/WechatIMG20.jpeg" alt="image" style="width: 350px; " />
 
 [![pub package](https://img.shields.io/pub/v/flutter_openim_sdk.svg)](https://pub.flutter-io.cn/packages/flutter_openim_sdk)
 [![Generic badge](https://img.shields.io/badge/platform-android%20|%20ios%20-blue.svg)](https://pub.dev/packages/flutter_openim_sdk)