diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c314d12f2..cc0356ad2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,11 @@
 name: CI
 
-on: [push, pull_request]
-
-
+on: 
+  pull_request
+  push: 
+    branches:
+      - 'master'
+      
 jobs:
   build:
     runs-on: ubuntu-latest