diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 81e42198..5a6ce275 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,9 +2,9 @@ name: build
 
 on:
   push:
-    branches: [ '**' ]
+    branches: [ 'main' ]
   pull_request:
-    branches: [ '**' ]
+    branches: [ 'main' ]
 
 jobs:
   build: