diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cbe2e1b..0bde0b9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,8 @@
 name: build
 on:
   push:
+    branches:
+      - 'master'
   workflow_dispatch:
     
 jobs: