diff --git a/README.md b/README.md
index db14a01..d7349b3 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ Logging things out on mobile browser is never an easy stuff. I used to include `
 
 ## Demo
 
-![Demo](http://7xn2zy.com1.z0.glb.clouddn.com/eruda_qrcode3.png)
+![Demo](./doc/qrcode.png)
 
 Browse it on your phone: [https://eruda.liriliri.io/](https://eruda.liriliri.io/)
 
diff --git a/doc/README_CN.md b/doc/README_CN.md
index 87f0cfe..d06e08f 100644
--- a/doc/README_CN.md
+++ b/doc/README_CN.md
@@ -94,7 +94,7 @@ eruda.init({
 
 ## Demo
 
-![Demo](http://7xn2zy.com1.z0.glb.clouddn.com/eruda_qrcode3.png)
+![Demo](./qrcode.png)
 
 请扫描二维码或在手机上直接访问：[https://eruda.liriliri.io/](https://eruda.liriliri.io/)
 
diff --git a/doc/qrcode.png b/doc/qrcode.png
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