diff --git a/.github/workflows/cmake_build.yml b/.github/workflows/cmake_build.yml
index b5cc809c0..53d1a7193 100644
--- a/.github/workflows/cmake_build.yml
+++ b/.github/workflows/cmake_build.yml
@@ -2,7 +2,11 @@ name: CMake Build
 
 on:
   push:
+    branches:
+      - master
   pull_request:
+    branches:
+      - master
 
 defaults:
   run: