diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 4862996..19761c2 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -16,30 +16,29 @@ jobs:
         with:
           submodules: true
 
-          # Does not provide asciidoctor out of the box :(
       - name: Setup Hugo
         uses: peaceiris/actions-hugo@v2
         with:
           hugo-version: 'latest'
 
-      - name: Setup asciidoctor
-        run: |
-          sudo gem update --system 3.0.6 # cf. https://github.com/rubygems/rubygems/issues/3068#issuecomment-574775885
-          sudo gem install asciidoctor
-          sudo .github/scripts/reroute_asciidoctor.sh
-          ruby --version; gem --version; asciidoctor --version
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7
+
+      - run: gem install asciidoctor
 
       - name: Build
-        run: hugo --minify
+        run: |
+          alias asciidoctor="asciidoctor --attribute=experimental=true --attribute=icons=font"
+          hugo --minify
         env:
-          HUGO_ENV_PRIVATE_ADDRESS: "${{ secrets.HUGO_ENV_PRIVATE_ADDRESS }}"  
-          HUGO_ENV_PRIVATE_USER:    "${{ secrets.HUGO_ENV_PRIVATE_USER }}"  
+          HUGO_ENV_PRIVATE_ADDRESS: "${{ secrets.HUGO_ENV_PRIVATE_ADDRESS }}"
+          HUGO_ENV_PRIVATE_USER:    "${{ secrets.HUGO_ENV_PRIVATE_USER }}"
           HUGO_ENV_PRIVATE_DOMAIN:  "${{ secrets.HUGO_ENV_PRIVATE_DOMAIN }}"
-      
+
       - name: Deploy
         if: github.ref == 'refs/heads/master' && github.event.repository.fork == false
         uses: peaceiris/actions-gh-pages@v3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./public
-