diff --git a/programming/index.md b/programming/index.md
index d42b6321..c248c22a 100644
--- a/programming/index.md
+++ b/programming/index.md
@@ -12,14 +12,14 @@ permalink: /programming/index.html
 
 ## Getting Started
 
-* [User Guide](./javascrit/user-guide/index.html)
+* [User Guide](./javascript/user-guide/index.html)
 
 ## API Reference
 
-* [API Reference](./javascrit/api-reference/index.html)
+* [API Reference](./javascript/api-reference/index.html)
 
 ## Release Notes
 
-* [Version 4.x](./javascrit/release-note/release-notes-4.x.html)
-* [Version 3.x](./javascrit/release-note/release-notes-3.x.html)
-* [Version 2.x](./javascrit/release-note/release-notes-2.x.html)
+* [Version 4.x](./javascript/release-note/release-notes-4.x.html)
+* [Version 3.x](./javascript/release-note/release-notes-3.x.html)
+* [Version 2.x](./javascript/release-note/release-notes-2.x.html)
diff --git a/programming/javascript/user-guide/index.md b/programming/javascript/user-guide/index.md
index 825938a9..a3844571 100644
--- a/programming/javascript/user-guide/index.md
+++ b/programming/javascript/user-guide/index.md
@@ -54,7 +54,7 @@ The simplest way to add the SDK is to use a CDN such as [jsDelivr](https://jsdel
 
   ```html
   <script src="https://cdn.jsdelivr.net/npm/dynamsoft-core@3.4.20/dist/core.js"></script>
-  <script src="https://cdn.jsdelivr.net/npm/dynamsoft-license@3.4.20/dist/license.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/dynamsoft-license@3.4.21/dist/license.js"></script>
   <script src="https://cdn.jsdelivr.net/npm/dynamsoft-camera-enhancer@4.1.0/dist/dce.js"></script>
   ```
 
@@ -62,14 +62,14 @@ The simplest way to add the SDK is to use a CDN such as [jsDelivr](https://jsdel
 
   ```html
   <script src="https://unpkg.com/dynamsoft-core@3.4.20/dist/core.js"></script>
-  <script src="https://unpkg.com/dynamsoft-license@3.4.20/dist/license.js"></script>
+  <script src="https://unpkg.com/dynamsoft-license@3.4.21/dist/license.js"></script>
   <script src="https://unpkg.com/dynamsoft-camera-enhancer@4.1.0/dist/dce.js"></script>
   ```
 
-> In some rare cases, you might not be able to access the CDN. If this happens, you can use
+<!-- > In some rare cases, you might not be able to access the CDN. If this happens, you can use
 >- [https://download2.dynamsoft.com/packages/dynamsoft-core@3.4.20/dist/core.js](https://download2.dynamsoft.com/packages/dynamsoft-core@3.2.10/dist/core.js)
->- [https://download2.dynamsoft.com/packages/dynamsoft-license@3.4.20/dist/license.js](https://download2.dynamsoft.com/packages/dynamsoft-license@3.2.10/dist/license.js)
->- [https://download2.dynamsoft.com/packages/dynamsoft-camera-enhancer@4.1.0/dist/dce.js](https://download2.dynamsoft.com/packages/dynamsoft-camera-enhancer@4.0.2/dist/dce.js)
+>- [https://download2.dynamsoft.com/packages/dynamsoft-license@3.4.21/dist/license.js](https://download2.dynamsoft.com/packages/dynamsoft-license@3.2.10/dist/license.js)
+>- [https://download2.dynamsoft.com/packages/dynamsoft-camera-enhancer@4.1.0/dist/dce.js](https://download2.dynamsoft.com/packages/dynamsoft-camera-enhancer@4.0.2/dist/dce.js) -->
 
 ### Host the SDK yourself