diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 0b0e0958f..fb7cc15fa 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -14,7 +14,7 @@ jobs:
         && !contains(github.event.pull_request.labels.*.name, 'backport')
     steps:
       - name: Backport Action
-        uses: sorenlouv/backport-github-action@v9.5.1
+        uses: sorenlouv/backport-github-action@ad888e978060bc1b2798690dd9d03c4036560947  # v9.5.1
         continue-on-error: true
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}