diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index 21508d2..ee7243c 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -2,7 +2,7 @@ name: Crystal CI
 on:
   push:
     branches:
-      - main
+      - master
 
 jobs:
   build: