diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e8c42dd..e6ea011 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: CI
-on: [push]
+on:
+  pull_request:
+    branches:
+      - main
 jobs:
   CI:
     runs-on: ubuntu-latest