diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 3d223e9f4..da37e3194 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -35,10 +35,9 @@ jobs:
           git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git config --global user.name "github-actions[bot]"
 
-      - name: Update branches
+      - name: Get branch histories
         run: |
-          git fetch origin ${{matrix.target_branch}} --unshallow
-          git checkout -f ${{matrix.target_branch}}
+          git fetch origin main --unshallow
           git status
           git log -1 --format='%H'