diff --git a/spec/dummy/Gemfile b/spec/dummy/Gemfile
index 089774a..f8ead30 100644
--- a/spec/dummy/Gemfile
+++ b/spec/dummy/Gemfile
@@ -1,19 +1,19 @@
 source 'https://rubygems.org'
 
 gem 'activerecord', '~> 4.0.0'
-gem 'activeresource', '~> 4.0.0'
-gem 'actionmailer', '~> 4.0.0'
-gem 'railties', '~> 4.0.0'
+gem 'activeresource', '~> 5.1.0'
+gem 'actionmailer', '~> 7.1.0'
+gem 'railties', '~> 7.1.0'
 
 gem 'sqlite3'
 
-gem 'carrierwave'
+gem 'carrierwave', '>= 0.10.0'
 gem 'fog'
-gem 'kaminari'
-gem 'plupload-rails'
+gem 'kaminari', '>= 0.16.0'
+gem 'plupload-rails', '>= 1.2.0'
 
-gem 'haml-rails'
-gem 'jquery-rails'
+gem 'haml-rails', '>= 1.0.0'
+gem 'jquery-rails', '>= 4.0.1'
 gem 'sass-rails'
 gem 'bootstrap_sass_rails'
-gem 'simple_form'
+gem 'simple_form', '>= 4.0.0'