diff --git a/solidus_subscriptions.gemspec b/solidus_subscriptions.gemspec
index 509167c8..87dc10a2 100644
--- a/solidus_subscriptions.gemspec
+++ b/solidus_subscriptions.gemspec
@@ -26,6 +26,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'coffee-rails'
   s.add_development_dependency 'database_cleaner'
   s.add_development_dependency 'factory_bot'
+  s.add_development_dependency 'ffaker'
   s.add_development_dependency 'poltergeist'
   s.add_development_dependency 'pry'
   s.add_development_dependency 'rspec'