diff --git a/.github/workflows/update-topo-on-info-pr.yml b/.github/workflows/update-topo-on-info-pr.yml
index 5b932ac..c28d029 100644
--- a/.github/workflows/update-topo-on-info-pr.yml
+++ b/.github/workflows/update-topo-on-info-pr.yml
@@ -13,8 +13,6 @@ jobs:
     steps:
 
     - uses: actions/checkout@v2
-      with:
-        ref: ${{ github.head_ref }}
 
     - uses: christianvuerings/add-labels@v1
       with:
@@ -30,4 +28,4 @@ jobs:
 
     - uses: stefanzweifel/git-auto-commit-action@v4
       with:
-        commit_message: merge csv data to topo
\ No newline at end of file
+        commit_message: merge csv data to topo