diff --git a/github-pages.gemspec b/github-pages.gemspec
index 9d9594b..faeb2b4 100644
--- a/github-pages.gemspec
+++ b/github-pages.gemspec
@@ -27,6 +27,7 @@ Gem::Specification.new do |s|
   s.add_dependency("mercenary", "~> 0.3")
   s.add_dependency("nokogiri", ">= 1.16.2", "< 2.0")
   s.add_dependency("terminal-table", "~> 1.4")
+  s.add_dependency("webrick", "~> 1.8")
   s.add_development_dependency("jekyll_test_plugin_malicious", "~> 0.2")
   s.add_development_dependency("pry", "~> 0.10")
   s.add_development_dependency("rspec", "~> 3.3")
diff --git a/lib/github-pages/dependencies.rb b/lib/github-pages/dependencies.rb
index 2da2c95..52ffa37 100644
--- a/lib/github-pages/dependencies.rb
+++ b/lib/github-pages/dependencies.rb
@@ -7,14 +7,13 @@ module GitHubPages
   class Dependencies
     VERSIONS = {
       # Jekyll
-      "jekyll" => "3.9.5",
+      "jekyll" => "3.10.0",
       "jekyll-sass-converter" => "1.5.2",
-      "webrick" => "1.8.1",
 
       # Converters
       "kramdown" => "2.4.0",
       "kramdown-parser-gfm" => "1.1.0",
-      "jekyll-commonmark-ghpages" => "0.4.0",
+      "jekyll-commonmark-ghpages" => "0.5.1",
 
       # Misc
       "liquid" => "4.0.4",