diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0ee751ad..30eefc0c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on:
   pull_request:
   push:
     branches:
-      - master
+      - main
 
 jobs:
   test-truffleruby: