diff --git a/lib/github-pages.rb b/lib/github-pages.rb
index 8a6434fd..1a83ec02 100644
--- a/lib/github-pages.rb
+++ b/lib/github-pages.rb
@@ -7,32 +7,32 @@ class GitHubPages
   def self.gems
     {
       # Jekyll
-      "jekyll"                    => "2.4.0",
-      "jekyll-coffeescript"       => "1.0.1",
+      "jekyll"                    => "3.0.2",
       "jekyll-sass-converter"     => "1.3.0",
+      "jekyll-textile-converter"  => "0.1.0",
 
       # Converters
       "kramdown"                  => "1.9.0",
-      "maruku"                    => "0.7.0",
       "rdiscount"                 => "2.1.8",
       "redcarpet"                 => "3.3.3",
       "RedCloth"                  => "4.2.9",
 
       # Liquid
-      "liquid"                    => "2.6.2",
+      "liquid"                    => "3.0.6",
 
       # Highlighters
-      "pygments.rb"               => "0.6.3",
+      "rouge"                     => "1.10.1",
 
       # Plugins
-      "jemoji"                    => "0.5.0",
-      "jekyll-mentions"           => "0.2.1",
+      "jemoji"                    => "0.5.1",
+      "jekyll-mentions"           => "1.0.0",
       "jekyll-redirect-from"      => "0.9.1",
       "jekyll-sitemap"            => "0.9.0",
       "jekyll-feed"               => "0.3.1",
       "jekyll-gist"               => "1.4.0",
       "jekyll-paginate"           => "1.1.0",
       "github-pages-health-check" => "0.6.0",
+      "jekyll-coffeescript"       => "1.0.1",
       "jekyll-seo-tag"            => "0.1.4",
     }
   end
diff --git a/spec/github-pages_spec.rb b/spec/github-pages_spec.rb
index 0de6acd3..981d2bd0 100644
--- a/spec/github-pages_spec.rb
+++ b/spec/github-pages_spec.rb
@@ -15,7 +15,7 @@
     expect(described_class.versions).to include("github-pages")
   end
 
-  %w[jekyll kramdown liquid maruku rdiscount redcarpet RedCloth].each do |gem|
+  %w[jekyll kramdown liquid rouge rdiscount redcarpet RedCloth].each do |gem|
     it "exposes #{gem} dependency version" do
       expect(described_class.gems[gem]).to be_a(String)
       expect(described_class.gems[gem]).not_to be_empty