grape.gemspec in grape-0.6.0 vs grape.gemspec in grape-0.6.1

@@ -19,10 +19,10 @@
   s.add_runtime_dependency 'rack-accept'
   s.add_runtime_dependency 'activesupport'
   s.add_runtime_dependency 'multi_json', '>= 1.3.2'
   s.add_runtime_dependency 'multi_xml', '>= 0.5.2'
   s.add_runtime_dependency 'hashie', '>= 1.2.0'
-  s.add_runtime_dependency 'virtus'
+  s.add_runtime_dependency 'virtus', '>= 1.0.0'
   s.add_runtime_dependency 'builder'
 
   s.add_development_dependency 'grape-entity', '>= 0.2.0'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'maruku'