diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index db37bf0..73ac9db 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,8 +1,9 @@
 name: build
 
 on:
-  - push
-  - pull_request
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   build: