diff --git a/.vitepress/config.js b/.vitepress/config.js
index 272a76b..6d057bb 100644
--- a/.vitepress/config.js
+++ b/.vitepress/config.js
@@ -4,7 +4,7 @@ import PanguPlugin from 'markdown-it-pangu';
 import { fileURLToPath, URL } from 'node:url';
 import VueMacros from 'unplugin-vue-macros/vite';
 import { VitePWA } from 'vite-plugin-pwa';
-import { withMermaid } from "vitepress-plugin-mermaid-xyxsw";
+import { withMermaid } from "vitepress-plugin-mermaid";
 import { nav } from './nav.js';
 import { chapter2_old, chapter3_old, chapter4_old, chapter5_old, chapter6_old, chapter7_old, chapter8_old, chapter9_old, generateSidebar, main_sidebar, main_sidebar_old } from './sidebar.js';
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4570472..729c86c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [2.1.1](https://github.com/camera-2018/hdu-cs-wiki/compare/v2.1.0...v2.1.1) (2024-07-31)
+
+
+### Bug Fixes
+
+* **mermaid:** mermaid Hydration failed ([0e2c504](https://github.com/camera-2018/hdu-cs-wiki/commit/0e2c50454b88363d4ccb49803812feed70c37a44))
+
 # [2.1.0](https://github.com/camera-2018/hdu-cs-wiki/compare/v2.0.0...v2.1.0) (2024-07-29)
 
 
diff --git a/README.md b/README.md
index 908a56d..20acf15 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@
 zzm 花费了一年的时间动员了大伙对讲义进行修缮和完备，不得不说这确实不是一个小的工作，不过在2023年3月，在计院领导的支持下，计算机学院科协成立了。我们将在学院的支持下继续完善这个内容，同时也欢迎大伙加入我们，共同参与到讲义的学习与撰写中来！
 
 <div align="center">
-  <img src="https://hducswiki-1323431205.cos.ap-shanghai.myqcloud.com/qrcode.png"/>
+  <img src="https://hducswiki-1323431205.cos.ap-shanghai.myqcloud.com/qrcode_1722492033281.jpg"/>
 </div>
 
 ## 学习原则
diff --git a/package-lock.json b/package-lock.json
index fd58f69..20fa1a2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,7 +29,7 @@
         "unplugin-vue-macros": "^2.10.0",
         "vite-plugin-pwa": "^0.20.1",
         "vitepress": "^1.3.1",
-        "vitepress-plugin-mermaid-xyxsw": "^2.12.13"
+        "vitepress-plugin-mermaid": "^2.0.16"
       },
       "optionalDependencies": {
         "@rollup/rollup-linux-x64-gnu": "^4.19.1",
@@ -15354,17 +15354,17 @@
         }
       }
     },
-    "node_modules/vitepress-plugin-mermaid-xyxsw": {
-      "version": "2.12.13",
-      "resolved": "https://registry.npmjs.org/vitepress-plugin-mermaid-xyxsw/-/vitepress-plugin-mermaid-xyxsw-2.12.13.tgz",
-      "integrity": "sha512-TRbKeEz6aaPo6xG3PNn1L6+AUHt2HKhWMrpO7DgSl5o325O9Z4A0MufMxrXSJtVwczRC13qOKHmF/1fVFLsCKg==",
+    "node_modules/vitepress-plugin-mermaid": {
+      "version": "2.0.16",
+      "resolved": "https://registry.npmjs.org/vitepress-plugin-mermaid/-/vitepress-plugin-mermaid-2.0.16.tgz",
+      "integrity": "sha512-sW0Eu4+1EzRdwZBMGjzwKDsbQiuJIxCy8BlMw7Ur88p9fXalrFYKqZ3wYWLxsFTBipeooFIeanef/xw1P+v7vQ==",
       "dev": true,
       "optionalDependencies": {
         "@mermaid-js/mermaid-mindmap": "^9.3.0"
       },
       "peerDependencies": {
         "mermaid": "10",
-        "vitepress": "^0.21.6 || ^1.0.0 || ^1.0.0-alpha"
+        "vitepress": "^1.0.0 || ^1.0.0-alpha"
       }
     },
     "node_modules/vue": {
diff --git a/package.json b/package.json
index 4350097..ecdae42 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "unplugin-vue-macros": "^2.10.0",
     "vite-plugin-pwa": "^0.20.1",
     "vitepress": "^1.3.1",
-    "vitepress-plugin-mermaid-xyxsw": "^2.12.13"
+    "vitepress-plugin-mermaid": "^2.0.16"
   },
   "optionalDependencies": {
     "@rollup/rollup-linux-x64-gnu": "^4.19.1",
diff --git a/简介.md b/简介.md
index c07d0d5..043fd5a 100644
--- a/简介.md
+++ b/简介.md
@@ -28,7 +28,7 @@
 :::
 
 <div align="center">
-  <img src="https://hducswiki-1323431205.cos.ap-shanghai.myqcloud.com/qrcode.png"/>
+  <img src="https://hducswiki-1323431205.cos.ap-shanghai.myqcloud.com/qrcode_1722492033281.jpg"/>
 </div>
 
 欢迎加群与学长交流！我们也可以针对你的喜好为你定制一个方案！