diff --git a/README.md b/README.md
index 80f6fbd0..8491b97c 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ So you can use local or multi-account CLI access with OpenAI(include Responses)/
 
 ## Sponsor
 
-[![z.ai](https://assets.router-for.me/english-5.png)](https://z.ai/subscribe?ic=8JVLJQFSKB)
+[![z.ai](https://assets.router-for.me/english-5-0.jpg)](https://z.ai/subscribe?ic=8JVLJQFSKB)
 
 This project is sponsored by Z.ai, supporting us with their GLM CODING PLAN.
 
diff --git a/README_CN.md b/README_CN.md
index add9c5cf..6e987fdf 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -10,7 +10,7 @@
 
 ## 赞助商
 
-[![bigmodel.cn](https://assets.router-for.me/chinese-5.png)](https://www.bigmodel.cn/claude-code?ic=RRVJPB5SII)
+[![bigmodel.cn](https://assets.router-for.me/chinese-5-0.jpg)](https://www.bigmodel.cn/claude-code?ic=RRVJPB5SII)
 
 本项目由 Z智谱 提供赞助, 他们通过 GLM CODING PLAN 对本项目提供技术支持。