diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 03663cb..86d77d0 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.2'
+          ruby-version: '3.2.4'
 
       - name: Install dependencies
         run: |
diff --git a/Gemfile b/Gemfile
index ad0640b..cad730a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,17 +7,18 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-# gem "jekyll", "~> 4.3.3"
+gem "jekyll", "~> 4.3.3"
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 # Use just-the-docs theme
 gem "just-the-docs"
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
-gem "github-pages", group: :jekyll_plugins
+# gem "github-pages", group: :jekyll_plugins
 
 group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.12"
+  gem "jekyll-seo-tag", "~> 2.7" # SEO plugin
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/_config.yml b/_config.yml
index 41c1e5a..186f3cc 100644
--- a/_config.yml
+++ b/_config.yml
@@ -51,3 +51,6 @@ plugins:
 #   - vendor/cache/
 #   - vendor/gems/
 #   - vendor/ruby/
+
+# Build settings
+markdown: kramdown
\ No newline at end of file