diff --git a/app/models/plutus/account.rb b/app/models/plutus/account.rb
index c26ee54e..4f2edc6f 100644
--- a/app/models/plutus/account.rb
+++ b/app/models/plutus/account.rb
@@ -35,7 +35,7 @@ class Account < ActiveRecord::Base
     has_many :amounts
     has_many :credit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::CreditAmount'
     has_many :debit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::DebitAmount'
-    has_many :entries, through: :amounts, source: :entry
+    has_many :entries, through: :amounts, source: :entry, :dependent => :destroy
     has_many :credit_entries, :through => :credit_amounts, :source => :entry, :class_name => 'Plutus::Entry'
     has_many :debit_entries, :through => :debit_amounts, :source => :entry, :class_name => 'Plutus::Entry'
 
diff --git a/app/models/plutus/entry.rb b/app/models/plutus/entry.rb
index ec951337..7045aa24 100644
--- a/app/models/plutus/entry.rb
+++ b/app/models/plutus/entry.rb
@@ -30,10 +30,14 @@ class Entry < ActiveRecord::Base
       belongs_to :commercial_document, :polymorphic => true
     end
 
-    has_many :credit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::CreditAmount', :inverse_of => :entry
-    has_many :debit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::DebitAmount', :inverse_of => :entry
-    has_many :credit_accounts, :through => :credit_amounts, :source => :account, :class_name => 'Plutus::Account'
-    has_many :debit_accounts, :through => :debit_amounts, :source => :account, :class_name => 'Plutus::Account'
+    has_many :credit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::CreditAmount',
+             :inverse_of => :entry, :dependent => :destroy
+    has_many :debit_amounts, :extend => AmountsExtension, :class_name => 'Plutus::DebitAmount',
+             :inverse_of => :entry, :dependent => :destroy
+    has_many :credit_accounts, :through => :credit_amounts, :source => :account,
+             :class_name => 'Plutus::Account'
+    has_many :debit_accounts, :through => :debit_amounts, :source => :account,
+             :class_name => 'Plutus::Account'
 
     validates_presence_of :description
     validate :has_credit_amounts?
diff --git a/lib/plutus.rb b/lib/plutus.rb
index ec12afd9..ea54da71 100644
--- a/lib/plutus.rb
+++ b/lib/plutus.rb
@@ -1,5 +1,8 @@
 # Plutus
 require "rails"
+require "jquery-rails"
+require "jquery-ui-rails"
+require "kaminari"
 
 module Plutus
   class Engine < Rails::Engine
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
-