diff --git a/README.md b/README.md
index 5ffb61d..15440e9 100644
--- a/README.md
+++ b/README.md
@@ -103,4 +103,6 @@ However, it is important to note that LiteIO does not currently support data rep
 
 Wechat Group QRCode
 
-![Wechat Group](doc/image/wechat_group.JPG)
\ No newline at end of file
+<p align="center">
+  <img src="./doc/image/wechat_group.JPG" width="300px" />
+</p>
\ No newline at end of file
diff --git a/doc/image/wechat_group.JPG b/doc/image/wechat_group.JPG
index adf3cb2..7df129b 100644
Binary files a/doc/image/wechat_group.JPG and b/doc/image/wechat_group.JPG differ