Rakefile in capistrano-ash-1.3.6 vs Rakefile in capistrano-ash-1.3.7

@@ -9,10 +9,10 @@
     gemspec.description = "August Ash recipes for Capistrano"
     gemspec.email       = "[e-mail]"
     gemspec.homepage    = "https://github.com/augustash/capistrano-ash"
     gemspec.authors     = ["August Ash"]
     # Gem dependencies
-    gemspec.add_dependency('capistrano', '>= 2.12.0')
+    gemspec.add_dependency('capistrano', '~> 2.15.0')
     gemspec.add_dependency('capistrano-ext')
     gemspec.add_dependency('railsless-deploy')
     gemspec.add_dependency('capistrano_colors')
 
   end