diff --git a/README.md b/README.md
index 96f25afd..fc84e57c 100644
--- a/README.md
+++ b/README.md
@@ -148,7 +148,7 @@ publish: false：means this version will not be published immediately, although
 
 2. wechat group
  <p align="center" >
-    <img src="./docs/wxcode.jpg" width=300/>
+    <img src="./docs/wxcode.png" width=300/>
  </p>
 
 ## TODO
diff --git a/docs/README_ZH.md b/docs/README_ZH.md
index eb950698..f6840c4f 100644
--- a/docs/README_ZH.md
+++ b/docs/README_ZH.md
@@ -137,5 +137,5 @@ pnpm run build
 
 2. wechat group
  <p align="center" >
-    <img src="./wxcode.jpg" />
+    <img src="./wxcode.png" />
  </p>
diff --git a/docs/wxcode.jpg b/docs/wxcode.jpg
deleted file mode 100644
index 4033665c..00000000
Binary files a/docs/wxcode.jpg and /dev/null differ