diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 05a02c1..62c353c 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -59,6 +59,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           path: repo-src
+          ref: ${{ github.event.pull_request.merge_commit_sha || github.event.push.head }}
 
       - name: Configure Build Matrix
         id: configure
@@ -104,6 +105,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           path: repo-src
+          ref: ${{ github.event.pull_request.merge_commit_sha || github.event.push.head }}
 
       - name: Install Linux packages
         if: runner.os == 'Linux'