diff --git a/.github/workflows/tidy.yml b/.github/workflows/tidy.yml
index 97fc6862..1f245319 100644
--- a/.github/workflows/tidy.yml
+++ b/.github/workflows/tidy.yml
@@ -3,7 +3,7 @@ on:
   workflow_dispatch: {}
   push:
     branches:
-      - gh-pages
+      - main
     paths:
       - index.html
 
@@ -12,7 +12,7 @@ jobs:
     name: Tidy up
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: brew install tidy-html5
       - run: tidy -config tidyconfig.txt -o index.html index.html
       - uses: peter-evans/create-pull-request@v6