diff --git a/README.md b/README.md
index a0bad9b18..b197a2ec0 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 * 首页
 
-![webterminal](https://github.com/ibuler/static/raw/master/jumpserver3/index.png)
+![webterminal](https://github.com/ibuler/static/raw/master/jumpserver3/index.jpg)
 
 * Web Terminal: