diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3f672522..8c77d223 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,5 +1,8 @@
 name: build
-on: push
+on:
+  push:
+    branches:
+      - master
 jobs:
   build-linux:
     runs-on: ubuntu-22.04