diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index da44c0e..9f3af6b 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -9,9 +9,9 @@ name: Ruby
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 jobs:
   test: