diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8075fc6..0112725 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,6 +11,7 @@ env:
 
 jobs:
   build-and-test:
+    if: github.event.pull_request.head.repo.full_name == github.repository || github.event_name == 'push'
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4