diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 51911dc..db6bba6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,12 +3,12 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
       - '[0-9].[0-9]+'  # matches to backport branches, e.g. 3.6
     tags: [ 'v*' ]
   pull_request:
     branches:
-      - master
+      - main
       - '[0-9].[0-9]+'
       - 'update/pre-commit-autoupdate'
   schedule: