diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b0dd705..b634d9e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -59,6 +59,7 @@ jobs:
       uses: actions/checkout@v3
       with:
         fetch-depth: 0
+        ref: "refs/pull/${{ github.event.number }}/merge"
 
     - name: Setup Go
       uses: actions/setup-go@v2.1.4