diff --git a/.github/workflows/sonar.yaml b/.github/workflows/sonar.yaml
index 4f91bfc95e8..21d87efdedd 100644
--- a/.github/workflows/sonar.yaml
+++ b/.github/workflows/sonar.yaml
@@ -72,12 +72,11 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONARCLOUD_TOKEN }}
         run: |
+          pr_number=$(jq -r '.number' sonarcloud-data/github-event.json)
           sonar-scanner \
             --define sonar.cfamily.build-wrapper-output="sonarcloud-data" \
             --define sonar.coverageReportPaths=sonarcloud-data/coverage.xml \
             --define sonar.projectKey=apache_kvrocks \
             --define sonar.organization=apache \
             --define sonar.scm.revision=${{ github.event.workflow_run.head_sha }} \
-            --define sonar.pullrequest.key=${{ github.event.workflow_run.pull_requests[0].number }} \
-            --define sonar.pullrequest.branch=${{ github.event.workflow_run.pull_requests[0].head.ref }} \
-            --define sonar.pullrequest.base=${{ github.event.workflow_run.pull_requests[0].base.ref }}
+            --define sonar.pullrequest.key="$pr_number"