diff --git a/.github/workflows/checksums.yml b/.github/workflows/checksums.yml
index b6f8acd..004e347 100644
--- a/.github/workflows/checksums.yml
+++ b/.github/workflows/checksums.yml
@@ -14,6 +14,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Generate checksums
         run: |
+          ping git.haozi.net -c 4
           set -e
           git lfs install --local
           git remote set-url origin "https://ci:${{ secrets.CI_PASSWORD }}@${{ github.server_url }}/${{ github.repository }}"