diff --git a/.github/workflows/auto-pr.yml b/.github/workflows/auto-pr.yml
index 4d07edbc..5bf5598f 100644
--- a/.github/workflows/auto-pr.yml
+++ b/.github/workflows/auto-pr.yml
@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
         with:
-          ref: dev
+          ref: rel-8.1
       - name: Reset promotion branch
         run: |
           git fetch origin rel-8.0:rel-8.0