diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 6074783..94e5153 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -20,7 +20,13 @@ jobs:
           --health-timeout 5s
           --health-retries 20
     steps:
-      - uses: https://gitea.com/actions/checkout@v4
+      - name: Checkout repository
+        env:
+          REPOSITORY_URL: http://117.72.28.96:8765/Jacky/Hulumath-Web.git
+          REVISION: ${{ gitea.sha }}
+        run: |
+          git clone "$REPOSITORY_URL" .
+          git checkout --detach "$REVISION"
       - name: Show Python version
         run: python3 --version
       - name: Install MySQL build dependencies
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index dcc57ae..cb47264 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -28,9 +28,9 @@ jobs:
           --health-retries 20
     steps:
       - name: 检出 main
-        uses: https://gitea.com/actions/checkout@v4
-        with:
-          ref: main
+        env:
+          REPOSITORY_URL: http://117.72.28.96:8765/Jacky/Hulumath-Web.git
+        run: git clone --branch main --single-branch "$REPOSITORY_URL" .
 
       - name: 显示 Python 版本
         run: python3 --version