erd.gemspec in erd-0.6.3 vs erd.gemspec in erd-0.6.4

@@ -16,10 +16,10 @@
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.name          = 'erd'
   gem.require_paths = ['lib']
   gem.version       = Erd::VERSION
 
-  gem.add_runtime_dependency 'rails-erd', ['>= 0.4.5']
+  gem.add_runtime_dependency 'ruby-graphviz'
   gem.add_runtime_dependency 'nokogiri'
 
   gem.add_development_dependency 'rails', '>= 3.2'
   gem.add_development_dependency 'sass-rails'
   gem.add_development_dependency 'rake'