diff --git a/.github/workflows/cpp_ubuntu.yml b/.github/workflows/cpp_ubuntu.yml
index 82174fbc5..706acc901 100644
--- a/.github/workflows/cpp_ubuntu.yml
+++ b/.github/workflows/cpp_ubuntu.yml
@@ -2,9 +2,9 @@ name: C++ Ubuntu
 
 on:
   push:
-    branches: [ main ]
+    branches: [ master ]
   pull_request:
-    branches: [ main ]
+    branches: [ master ]
 
 jobs:
   build-ubuntu: