diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fd28ffab3..bdab1f171 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,6 +48,7 @@ jobs:
         run: mvn --batch-mode install -am jacoco:report ${{ matrix.maven-args }}
 
       - name: Report coverage
+        if: ${{ github.event_name == 'push' && github.ref == 'master' }}
         env:
           COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
         run: mvn --batch-mode coveralls:report