source "https://rubygems.org"
require "json"
require "open-uri"

gemspec

group :development, :test do
  versions = JSON.parse(open("https://pages.github.com/versions.json").read)
  versions.delete("ruby")
  versions.delete("jekyll-seo-tag")
  versions.delete("github-pages")

  versions.each do |dep, version|
    gem dep, version
  end
end