diff --git a/docker-build.yml b/docker-build.yml
index 1454292..9334e3f 100644
--- a/docker-build.yml
+++ b/docker-build.yml
@@ -1,5 +1,7 @@
 name: Docker-build
-on: [push]
+on: 
+  push:
+    branches: [ master ]
 jobs:
   docker-build:
     runs-on: ubuntu-latest