diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4f99575cd..e88db7d86 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,10 @@
 name: CI
 
-on: push
+on:
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
   typecheck: