diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b9f0661..1fc7688 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,7 @@
 name: ci
-on: push
+on:
+  pull_request:
+    branches: [main]
 permissions:
   contents: read
 jobs: