activeadmin.gemspec in activeadmin-1.0.0.pre3 vs activeadmin.gemspec in activeadmin-1.0.0.pre4

@@ -22,10 +22,10 @@
   s.add_dependency 'formtastic_i18n'
   s.add_dependency 'inherited_resources', '~> 1.6'
   s.add_dependency 'jquery-rails'
   s.add_dependency 'jquery-ui-rails'
   s.add_dependency 'kaminari',            '~> 0.15'
-  s.add_dependency 'rails',               '>= 3.2', '< 5.0'
+  s.add_dependency 'rails',               '>= 3.2', '< 5.1'
   s.add_dependency 'ransack',             '~> 1.3'
   s.add_dependency 'sass-rails'
   s.add_dependency 'sprockets',           '< 4'
 end