diff --git a/features/generators.feature b/features/generators.feature
index 6630ebd..dfddd85 100644
--- a/features/generators.feature
+++ b/features/generators.feature
@@ -24,7 +24,7 @@ Feature:
       end
 
       """
-    And the file "test/factories/namespaced_users.rb" should contain "factory :namespaced_user, :class => 'Namespaced::User' do"
+    And the file "test/factories/namespaced_users.rb" should contain "factory :namespaced_user, class: 'Namespaced::User' do"
 
   Scenario: The factory_girl_rails generators does not create a factory file for each model if there is a factories.rb file in the test directory
     When I run `bundle install` with a clean environment
diff --git a/lib/generators/factory_girl.rb b/lib/generators/factory_girl.rb
index 3918c36..acbba81 100644
--- a/lib/generators/factory_girl.rb
+++ b/lib/generators/factory_girl.rb
@@ -8,7 +8,7 @@ module FactoryGirl
       end
 
       def explicit_class_option
-        ", :class => '#{class_name}'" unless class_name == singular_table_name.camelize
+        ", class: '#{class_name}'" unless class_name == singular_table_name.camelize
       end
     end
   end