diff --git a/README.md b/README.md
index e2ae016..1ec21c4 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ go mod tidy
 
 当然你可以加入钉钉群（一群已满员）一起直接交流，在钉钉群中可以获取最新beta版本。
 
-![](./build/doc/img/dingding.png)
+![](./build/doc/img/dingding.jpeg)
 
 群号：44754005
 
diff --git a/build/doc/img/dingding.jpg b/build/doc/img/dingding.jpg
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index 0000000..51b1132
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diff --git a/build/doc/img/dingding.png b/build/doc/img/dingding.png
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