diff --git a/.github/workflows/checksums.yml b/.github/workflows/checksums.yml
index 73be580..cf38ec5 100644
--- a/.github/workflows/checksums.yml
+++ b/.github/workflows/checksums.yml
@@ -16,6 +16,8 @@ jobs:
         run: |
           set -e
           git lfs install --local
+          git config --global user.name "CI"
+          git config --global user.email "ci@haozi.net"
           # disable credentials by actions/checkout for LFS endpoints
           AUTH=$(git config --local http.${{ github.server_url }}/.extraheader)
           git config --local --unset http.${{ github.server_url }}/.extraheader
@@ -27,8 +29,6 @@ jobs:
             sha256sum -b "$file" | sed "s|$file|$filename|" > "${file}.sha256";
           done
           unset IFS
-      - name: Commit changes
-        uses: actions/git-auto-commit-action@v5
-        with:
-          commit_message: "chore: update checksums"
-          file_pattern: "*.sha256"
+          git add -A
+          git commit -m "chore: update checksums" || true
+          git push origin ${{ github.ref }}