diff --git a/Gemfile b/Gemfile
index 9481a703ec..e29e26cdc8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,20 @@
-source 'https://rubygems.org'
-ruby '~> 2.3.0'
-gem 'github-pages', group: :jekyll_plugins
+source "https://rubygems.org"
+
+gem "jekyll", "3.2.1"
+gem "jekyll-sass-converter", "1.3.0"
+gem "minima", "1.1.0"
+gem "kramdown", "1.11.1"
+gem "liquid", "3.0.6"
+gem "rouge", "1.11.1"
+gem "jemoji", "0.7.0"
+gem "jekyll-mentions", "1.2.0"
+gem "jekyll-redirect-from", "0.11.0"
+gem "jekyll-sitemap", "0.10.0"
+gem "jekyll-feed", "0.5.1"
+gem "jekyll-gist", "1.4.0"
+gem "jekyll-paginate", "1.1.0"
+gem "jekyll-coffeescript", "1.0.1"
+gem "jekyll-seo-tag", "2.0.0"
+gem "jekyll-github-metadata", "2.0.2"
+gem "listen", "3.0.6"
+gem "activesupport", "4.2.7"