diff --git a/README.md b/README.md
index ab4d0f4..2a182dc 100644
--- a/README.md
+++ b/README.md
@@ -138,5 +138,5 @@ Copyright (c) 2024 菲鸽
 扫码进微信群，微信群7天过期，作者会定期维护，争取读者每次打开都是可用的。
 
 <p align='center'>
-<img alt="special sponsor appwrite" src="./screenshots/wx-group.jpg" width="300" style="margin-left:0px;">
+<img alt="special sponsor appwrite" src="./screenshots/wx-group.png" width="300" style="margin-left:0px;">
 </p>
diff --git a/screenshots/wx-group.jpg b/screenshots/wx-group.2.jpg
similarity index 100%
rename from screenshots/wx-group.jpg
rename to screenshots/wx-group.2.jpg
diff --git a/screenshots/wx-group.png b/screenshots/wx-group.png
new file mode 100644
index 0000000..f691454
Binary files /dev/null and b/screenshots/wx-group.png differ