diff --git a/.github/workflows/size-limit.yml b/.github/workflows/size-limit.yml
index 1a1a82f6..65442eac 100644
--- a/.github/workflows/size-limit.yml
+++ b/.github/workflows/size-limit.yml
@@ -16,6 +16,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
       - uses: andresz1/size-limit-action@v1.8.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}