diff --git a/.github/workflows/tags.yaml b/.github/workflows/tags.yaml
index 8de8148..451714a 100644
--- a/.github/workflows/tags.yaml
+++ b/.github/workflows/tags.yaml
@@ -11,6 +11,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
       with:
+        ref: ${{ github.event.pull_request.merge_commit_sha }}
         fetch-depth: '0'
     - name: Bump version and push tag
       uses: anothrNick/github-tag-action@1.64.0 # Don't use @master or @v1 unless you're happy to test the latest version