diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index 427005b..6e7d7c7 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -13,6 +13,13 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: "Setup sing-box"
+      env:
+        SING_BOX_DEB_URL: "https://github.com/SagerNet/sing-box/releases/download/v1.8.0-rc.7/sing-box_1.8.0-rc.7_linux_amd64.deb"
+      run: |
+          set -Eeuo pipefail
+          wget -O sing-box.deb $SING_BOX_DEB_URL
+          sudo dpkg -i sing-box.deb
     - name: Set up Python3
       uses: actions/setup-python@v2
       with:
@@ -29,5 +36,13 @@ jobs:
         git config --global user.email "action@github.com"
         git config --global user.name "GitHub Action"
         git add ./rule/*.json
-        git commit -m "Add JSON files"
-        git push
+        git add ./rule/*.srs
+
+        # 检查是否有文件被修改
+        if git diff --staged --quiet; then
+          echo "No changes to commit"
+          exit 0
+        else
+          git commit -m "Update rules"
+          git push
+        fi