diff --git a/.github/workflows/github-to-gitlab-push-sync.yml b/.github/workflows/github-to-gitlab-push-sync.yml
index 1d282c71..a0aa364a 100644
--- a/.github/workflows/github-to-gitlab-push-sync.yml
+++ b/.github/workflows/github-to-gitlab-push-sync.yml
@@ -10,6 +10,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with:
+        ref: 'develop'
         fetch-depth: 0
     - uses: deGrootLab/pmx@master
       with: