diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 365db64357..efac0d7cf0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,8 +1,9 @@
 name: CI
 
 on:
-  - push
-  - pull_request
+  push:
+    branches: [main]
+  pull_request:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}