diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 079a1a45..4cf85d9a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,6 +1,12 @@
 name: CMake
 
-on: [push]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:    
+      - '*'
 
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
@@ -44,4 +50,4 @@ jobs:
     #   shell: bash
     #   # Execute tests defined by the CMake configuration.  
     #   # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
-    #   run: make tests && ./tests
\ No newline at end of file
+    #   run: make tests && ./tests