grape.gemspec in grape-0.3.2 vs grape.gemspec in grape-0.4.0

@@ -12,10 +12,10 @@
   s.description = %q{A Ruby framework for rapid API development with great conventions.}
   s.license     = "MIT"
 
   s.rubyforge_project = "grape"
 
-  s.add_runtime_dependency 'rack'
+  s.add_runtime_dependency 'rack', '>= 1.3.0'
   s.add_runtime_dependency 'rack-mount'
   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'