diff --git a/spec/dummy/Gemfile b/spec/dummy/Gemfile
index 089774a..ca9ec43 100644
--- a/spec/dummy/Gemfile
+++ b/spec/dummy/Gemfile
@@ -7,7 +7,7 @@ gem 'railties', '~> 4.0.0'
 
 gem 'sqlite3'
 
-gem 'carrierwave'
+gem 'carrierwave', '>= 2.2.5'
 gem 'fog'
 gem 'kaminari'
 gem 'plupload-rails'