diff --git a/Update.json b/Update.json
index 09973f9b..5a0f68a6 100644
--- a/Update.json
+++ b/Update.json
@@ -2969,6 +2969,17 @@
                 }
             ],
             "Notes": "No release notes were provided for this release."
+        },
+        "2.1.1": {
+            "UpdateDate": 1754911555185,
+            "Prerelease": true,
+            "UpdateContents": [
+                {
+                    "PR": 829,
+                    "Description": "Update diff-match-patch library source URL"
+                }
+            ],
+            "Notes": "No release notes were provided for this release."
         }
     }
 }
\ No newline at end of file
diff --git a/XMOJ.user.js b/XMOJ.user.js
index f8c3a504..7b47f15e 100644
--- a/XMOJ.user.js
+++ b/XMOJ.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         XMOJ
-// @version      2.1.0
+// @version      2.1.1
 // @description  XMOJ增强脚本
 // @author       @XMOJ-Script-dev, @langningchen and the community
 // @namespace    https://github/langningchen
@@ -10,7 +10,7 @@
 // @require      https://cdnjs.cloudflare.com/ajax/libs/codemirror/6.65.7/codemirror.min.js
 // @require      https://cdnjs.cloudflare.com/ajax/libs/codemirror/6.65.7/mode/clike/clike.min.js
 // @require      https://cdnjs.cloudflare.com/ajax/libs/codemirror/6.65.7/addon/merge/merge.min.js
-// @require      https://cdn.jsdelivr.net/gh/google/diff-match-patch@master/javascript/diff_match_patch_uncompressed.js
+// @require      https://gitee.com/mirrors_google/diff-match-patch/raw/master/javascript/diff_match_patch_uncompressed.js
 // @require      https://cdnjs.cloudflare.com/ajax/libs/dompurify/3.0.2/purify.min.js
 // @require      https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
 // @require      https://cdnjs.cloudflare.com/ajax/libs/marked/4.3.0/marked.min.js
diff --git a/package.json b/package.json
index d753282c..9e30be84 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xmoj-script",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "an improvement script for xmoj.tech",
   "main": "AddonScript.js",
   "scripts": {