diff --git a/lib/plutus.rb b/lib/plutus.rb
index ec12afd9..e9d15d83 100644
--- a/lib/plutus.rb
+++ b/lib/plutus.rb
@@ -1,9 +1,18 @@
 # Plutus
 require "rails"
+require "jquery-rails"
+require "jquery-ui-rails"
+require "kaminari"
 
 module Plutus
   class Engine < Rails::Engine
     isolate_namespace Plutus
+
+    config.to_prepare do
+      Dir.glob(Rails.root + "app/decorators/**/*_decorator*.rb").each do |c|
+        require_dependency(c)
+      end
+    end
   end
 
 
diff --git a/plutus.gemspec b/plutus.gemspec
index 1735bb9e..93f817a3 100644
--- a/plutus.gemspec
+++ b/plutus.gemspec
@@ -20,9 +20,9 @@ Gem::Specification.new do |s|
     "README.markdown"
   ]
   s.add_dependency("rails", "> 4.0")
-  s.add_dependency("jquery-rails", ">= 3.0")
-  s.add_dependency("jquery-ui-rails", ">= 4.2.2")
-  s.add_dependency("kaminari", "~> 1.0")
+  s.add_dependency("jquery-rails", "~> 4.0")
+  s.add_dependency("jquery-ui-rails", "~> 5.0")
+  s.add_dependency("kaminari", "~> 1.1")
   s.add_development_dependency("yard")
   s.files = Dir["{app,config,db,lib}/**/*"] + ["LICENSE", "Rakefile", "README.markdown"]
   s.homepage = %q{http://github.com/mbulat/plutus}
@@ -40,4 +40,3 @@ Gem::Specification.new do |s|
   else
   end
 end
-