diff --git a/.github/workflows/legacy.yml b/.github/workflows/legacy.yml
index f3d2d63..ad65222 100644
--- a/.github/workflows/legacy.yml
+++ b/.github/workflows/legacy.yml
@@ -1,9 +1,12 @@
 name: C/C++ CI
 
 on:
-  push:
-    branches: [ "master" ]
   pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
 
 jobs:
   build: