diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 0a50e0c8..12214da4 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -3,7 +3,7 @@ on:
   pull_request:
   push:
     branches:
-      - main
+      - master
 jobs:
   check:
     runs-on: ubuntu-latest