diff --git a/Gemfile b/Gemfile
index 30338b7..8266cb8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,10 @@
 source 'https://rubygems.org'
 
-gem 'github-pages'
-gem 'jekyll-seo-tag'
+require 'json'
+require 'open-uri'
+versions = JSON.parse(open('https://pages.github.com/versions.json').read)
+
+gem 'github-pages', versions['github-pages']
 
 group :development do
   gem 'colored'