diff --git a/Gemfile b/Gemfile
index 4a572a8..48088dc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,20 +3,20 @@ source "http://rubygems.org"
 gemspec
 
 # used by the dummy application
-gem 'rails', '3.1.0'
+gem 'rails', '7.1.0'
 gem 'json'
-gem 'coffee-rails', "~> 3.1.0"
-gem 'haml-rails'
+gem 'coffee-rails', '~> 4.2.2'
+gem 'haml-rails', '>= 0.5.3'
 
 # used by test rails apps
 gem 'sqlite3'
-gem 'sass-rails', "~> 3.1.0"
+gem 'sass-rails', '~> 5.0.8'
 gem 'uglifier'
-gem 'jquery-rails'
+gem 'jquery-rails', '>= 4.0.1'
 gem 'turn', :require => false, :group => :test
 
 group :development, :test do
-  gem "rspec-rails"
+  gem "rspec-rails", ">= 2.13.0"
   gem "capybara"
   gem "aruba"
 end