diff --git a/.env.example b/.env.example
index e56f6d7..34d6a34 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,5 @@
 # Classworks KV 默认服务器域名
-VITE_DEFAULT_KV_SERVER=https://kv-service.houlang.cloud
+VITE_DEFAULT_KV_SERVER=https://kv-service.wuyuan.dev
 
 # Classworks KV 授权服务器域名
 VITE_DEFAULT_AUTH_SERVER=https://kv.houlang.cloud
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 3eeffa4..ccb161b 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Build
         env:
           VITE_APP_ID: d158067f53627d2b98babe8bffd2fd7d
-          VITE_DEFAULT_KV_SERVER: https://kv-service.houlang.cloud
+          VITE_DEFAULT_KV_SERVER: https://kv-service.wuyuan.dev
           VITE_DEFAULT_AUTH_SERVER: https://kv.houlang.cloud
         run: |
           npm install
diff --git a/.github/workflows/store-pwa.yml b/.github/workflows/store-pwa.yml
index cde85cc..b4b50b5 100644
--- a/.github/workflows/store-pwa.yml
+++ b/.github/workflows/store-pwa.yml
@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       VITE_APP_ID: d158067f53627d2b98babe8bffd2fd7d
-      VITE_DEFAULT_KV_SERVER: https://kv-service.houlang.cloud
+      VITE_DEFAULT_KV_SERVER: https://kv-service.wuyuan.dev
       VITE_DEFAULT_AUTH_SERVER: https://kv.houlang.cloud
       STORE_PRODUCTION_URL: ${{ inputs.production_url || 'https://cs.houlang.cloud/' }}
 
diff --git a/src/utils/dataProvider.js b/src/utils/dataProvider.js
index 4abdc38..583221e 100644
--- a/src/utils/dataProvider.js
+++ b/src/utils/dataProvider.js
@@ -257,7 +257,7 @@ export default {
         if (autoConfigureCloud) {
           // 使用classworksCloudDefaults配置
           const classworksCloudDefaults = {
-            "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.houlang.cloud",
+            "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.wuyuan.dev",
             "server.siteKey": "",
           };
 
diff --git a/src/utils/serverRotation.js b/src/utils/serverRotation.js
index ebc0c97..53ff794 100644
--- a/src/utils/serverRotation.js
+++ b/src/utils/serverRotation.js
@@ -8,7 +8,6 @@ import { getSetting } from "./settings";
 
 // Server list for classworkscloud provider (in default priority order)
 const CLASSWORKS_CLOUD_SERVERS = [
-  "https://kv-service.houlang.cloud",
   "https://kv-service.wuyuan.dev",
 ];
 
diff --git a/src/utils/settings.js b/src/utils/settings.js
index e5f3190..757a4d0 100644
--- a/src/utils/settings.js
+++ b/src/utils/settings.js
@@ -68,7 +68,7 @@ const SETTINGS_CHANGED_EVENT = "classworks:settings:changed";
 
 // 新增: Classworks云端存储的默认设置
 const classworksCloudDefaults = {
-  "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.houlang.cloud",
+  "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.wuyuan.dev",
   //"server.domain": "http://localhost:3030",
   "server.siteKey": "",
 };