diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 3ffec8c..e2361c4 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -6,7 +6,12 @@ on:
 
 jobs:
   mkdocs:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: write
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -31,8 +36,11 @@ jobs:
           echo "MKDOCS_VERSION=$(mkdocs --version | cut -d " " -f 3)" >> $GITHUB_ENV
           echo "SHORT_SHA=`echo ${GITHUB_SHA} | cut -c1-9`" >> $GITHUB_ENV
 
+      - run: rm ./.gitignore
+
       - name: Deploy docs
         uses: peaceiris/actions-gh-pages@v4
+        if: github.ref == 'refs/heads/main'
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./site