stripe.gemspec in stripe-1.8.8 vs stripe.gemspec in stripe-1.9.9

@@ -10,9 +10,10 @@
   s.authors = ['Ross Boucher', 'Greg Brockman']
   s.email = ['[e-mail]', '[e-mail]']
   s.homepage = 'https://stripe.com/api'
 
   s.add_dependency('rest-client', '~> 1.4')
+  s.add_dependency('mime-types', '~> 1.25')
   s.add_dependency('multi_json', '>= 1.0.4', '< 2')
 
   s.add_development_dependency('mocha', '~> 0.13.2')
   s.add_development_dependency('shoulda', '~> 3.4.0')
   s.add_development_dependency('test-unit')