diff --git a/.github/workflows/quality-monitor.yml b/.github/workflows/quality-monitor.yml
index 0c887a6..12c12cb 100644
--- a/.github/workflows/quality-monitor.yml
+++ b/.github/workflows/quality-monitor.yml
@@ -10,9 +10,12 @@ jobs:
     name: Build, test and monitor quality on Ubuntu
 
     steps:
+      - uses: actions/checkout@v4
+        if: github.event_name == 'push'
       - uses: actions/checkout@v4
         with:
-          ref: "refs/pull/${{ github.event.number }}/merge"
+          ref: "${{ github.event.pull_request.merge_commit_sha }}"
+        if: github.event_name == 'pull_request_target'
       - name: Set up JDK 21
         uses: actions/setup-java@v4
         with: