diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 928b589..0c8ce2f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: CI
-on: [push]
+on:
+  push:
+    branches: [main]
+  pull_request:
 
 # Automatically stop old builds on the same branch/PR
 concurrency: