diff --git a/README.md b/README.md
index a1f97b7..5b903d7 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ import QrcodeDecoder from 'qrcode-decoder';
 Using in browser:
 
 ```html
-<script src="https://unpkg.com/qrcode-decoder"></script>
+<script src="https://unpkg.com/qrcode-decoder@0.3.1/dist/index.min.js"></script>
 ```
 
 ## Demo
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 4ccd910..1074e79 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -38,7 +38,7 @@ import QrcodeDecoder from 'qrcode-decoder';
 如果你是浏览器环境
 
 ```html
-<script src="https://unpkg.com/qrcode-decoder"></script>
+<script src="https://unpkg.com/qrcode-decoder@0.3.1/dist/index.min.js"></script>
 ```
 
 ## 示例