diff --git a/README.en.md b/README.en.md
index 0b888a7..6c9dba7 100644
--- a/README.en.md
+++ b/README.en.md
@@ -424,6 +424,6 @@ style specifications remain under their own terms; GSAP is bundled under GreenSo
 
 If this project helps you, feel free to buy the author a coffee ☕
 
-<img src="https://raw.githubusercontent.com/OneMoh/html-explainer-demos/main/images/wechat-reward-qr.jpg" width="220" alt="Moh's reward QR code">
+<img src="https://raw.githubusercontent.com/OneMoh/html-explainer-demos/main/images/wechat-reward-qr.jpg" width="340" alt="Moh's reward QR code">
 
 </div>
diff --git a/README.md b/README.md
index 6f1aff9..cdada1a 100644
--- a/README.md
+++ b/README.md
@@ -389,6 +389,6 @@ MIT 覆盖原创代码与文档。第三方组件与衍生出的风格规范仍
 
 如果这个项目对你有帮助，欢迎请作者喝杯咖啡 ☕
 
-<img src="https://raw.githubusercontent.com/OneMoh/html-explainer-demos/main/images/wechat-reward-qr.jpg" width="220" alt="Moh 的赞赏码">
+<img src="https://raw.githubusercontent.com/OneMoh/html-explainer-demos/main/images/wechat-reward-qr.jpg" width="340" alt="Moh 的赞赏码">
 
 </div>