diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 976e122..a529418 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -26,10 +26,14 @@ jobs:
     steps:
       - name: Checkout repository
         env:
-          REPOSITORY_URL: http://117.72.28.96:8765/Jacky/Hulumath-Web.git
+          CHECKOUT_TOKEN: ${{ github.token }}
           REVISION: ${{ gitea.sha }}
         run: |
-          git clone "$REPOSITORY_URL" .
+          set -euo pipefail
+          git init .
+          git remote add origin "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git"
+          git -c http.extraHeader="Authorization: token ${CHECKOUT_TOKEN}" \
+            fetch --depth=1 origin "$REVISION"
           git checkout --detach "$REVISION"
       - name: Show Python version
         run: python3 --version