diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d4e4208..0cb84fd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,10 +3,10 @@ name: ci
 on:
   push:
     branches:
-      - main
+      - master
   pull_request:
     branches:
-      - main
+      - master
   workflow_dispatch:
   schedule:
     - cron: "0 5 * * *"