diff --git a/.github/workflows/checksums.yml b/.github/workflows/checksums.yml
index 0afdcc3..0be6bfb 100644
--- a/.github/workflows/checksums.yml
+++ b/.github/workflows/checksums.yml
@@ -10,19 +10,13 @@ jobs:
   checksums:
     runs-on: cn
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
       - name: Generate checksums
         run: |
-          curl https://git.haozi.net
           set -e
           git lfs install --local
           git remote set-url origin "https://ci:${{ secrets.CI_PASSWORD }}@${{ github.server_url }}/${{ github.repository }}"
           git config lfs.https://ci:${{ secrets.CI_PASSWORD }}@${{ github.server_url }}/${{ github.repository }}.git/info/lfs.locksverify true
-          # disable credentials by actions/checkout for LFS endpoints
-          AUTH=$(git config --local http.${{ github.server_url }}/.extraheader)
-          git config --local --unset http.${{ github.server_url }}/.extraheader
-          git config --local http.${{ github.server_url }}/${{ github.repository }}.git/info/lfs/objects/batch.extraheader "$AUTH"
+          git checkout ${{ github.ref }}
           git lfs pull
           IFS=$'\n'
           for file in $(git ls-files | grep "^panel/" | grep -v ".sha256$" | grep -v ".txt$"); do