diff --git a/README.md b/README.md
index fd9b391b..aeeb88a5 100755
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ Canyon is a JavaScript code coverage collection platform. We address the difficu
 
 ## WeChat Group
 
-<img src="./screenshots/wechat2.png" style="width: 200px"/>
+<img src="./screenshots/wechat3.jpg" style="width: 200px"/>
 
 [//]: # (![]&#40;./screenshots/wechat.jpg&#41;)
 
diff --git a/screenshots/wechat2.png b/screenshots/wechat2.png
deleted file mode 100644
index afc5487e..00000000
Binary files a/screenshots/wechat2.png and /dev/null differ
diff --git a/screenshots/wechat3.jpg b/screenshots/wechat3.jpg
new file mode 100644
index 00000000..3ac3b9f5
Binary files /dev/null and b/screenshots/wechat3.jpg differ