source 'https://rubygems.org' gem 'middleman', '~> 4.2' gem 'middleman-autoprefixer', '~> 3.0' gem 'tzinfo-data', platforms: [:mswin, :mingw, :jruby] gem 'wdm', '~> 0.1', platforms: [:mswin, :mingw] gem 'rake' gem 'webrick'