diff --git a/Gemfile b/Gemfile
index 93131a7..2f7649b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,4 @@ source 'http://rubygems.org'
 
 gem 'activesupport', '~> 3.0'
 gem 'activemodel',   '~> 3.0'
-gem 'mongoid', '~> 2.0'
-gem 'bson', '~> 2.0'
+gem 'mongoid', '~> 3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b25623..61ee053 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,17 +7,17 @@ GEM
     activesupport (3.2.1)
       i18n (~> 0.6)
       multi_json (~> 1.0)
-    bson (1.5.2)
     builder (3.0.0)
     i18n (0.6.0)
-    mongo (1.5.2)
-      bson (= 1.5.2)
-    mongoid (2.4.3)
-      activemodel (~> 3.1)
-      mongo (~> 1.3)
-      tzinfo (~> 0.3.22)
+    mongoid (3.1.7)
+      activemodel (~> 3.2)
+      moped (~> 1.4)
+      origin (~> 1.0)
+      tzinfo (~> 0.3.29)
+    moped (1.5.3)
     multi_json (1.0.4)
-    tzinfo (0.3.31)
+    origin (1.1.0)
+    tzinfo (0.3.53)
 
 PLATFORMS
   ruby
@@ -25,5 +25,7 @@ PLATFORMS
 DEPENDENCIES
   activemodel (~> 3.0)
   activesupport (~> 3.0)
-  bson
-  mongoid
+  mongoid (~> 3.0)
+
+BUNDLED WITH
+   1.14.6
diff --git a/Rakefile b/Rakefile
index 234d21b..f8e87af 100644
--- a/Rakefile
+++ b/Rakefile
@@ -35,12 +35,12 @@ task :default => :spec
 #task :spec => :check_dependencies
 
 
-require 'rake/rdoctask'
-Rake::RDocTask.new do |rdoc|
-  version = File.exist?('VERSION') ? File.read('VERSION') : ""
-
-  rdoc.rdoc_dir = 'rdoc'
-  rdoc.title = "pennies #{version}"
-  rdoc.rdoc_files.include('README*')
-  rdoc.rdoc_files.include('lib/**/*.rb')
-end
+# require 'rake/rdoctask'
+# Rake::RDocTask.new do |rdoc|
+#   version = File.exist?('VERSION') ? File.read('VERSION') : ""
+#
+#   rdoc.rdoc_dir = 'rdoc'
+#   rdoc.title = "pennies #{version}"
+#   rdoc.rdoc_files.include('README*')
+#   rdoc.rdoc_files.include('lib/**/*.rb')
+# end
diff --git a/VERSION b/VERSION
index 81340c7..1750564 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.0.4
+0.0.6
diff --git a/pennies.gemspec b/pennies.gemspec
index 47033df..2d63ce6 100644
--- a/pennies.gemspec
+++ b/pennies.gemspec
@@ -1,17 +1,19 @@
 # Generated by jeweler
 # DO NOT EDIT THIS FILE DIRECTLY
-# Instead, edit Jeweler::Tasks in Rakefile, and run 'rake gemspec'
+# Instead, edit Jeweler::Tasks in rakefile, and run 'rake gemspec'
 # -*- encoding: utf-8 -*-
+# stub: pennies 0.0.4 ruby lib
 
 Gem::Specification.new do |s|
-  s.name = "pennies"
+  s.name = "pennies".freeze
   s.version = "0.0.4"
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
-  s.authors = ["Jiri Zajpt"]
-  s.date = "2011-11-09"
-  s.description = "Pennies handles your money and currency needs. Support Mongoid and MongoMapper."
-  s.email = "jzajpt@blueberry.cz"
+  s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
+  s.require_paths = ["lib".freeze]
+  s.authors = ["Jiri Zajpt".freeze]
+  s.date = "2017-05-15"
+  s.description = "Pennies handles your money and currency needs. Support Mongoid and MongoMapper.".freeze
+  s.email = "jzajpt@blueberry.cz".freeze
   s.extra_rdoc_files = [
     "LICENSE",
     "README.rdoc"
@@ -25,33 +27,29 @@ Gem::Specification.new do |s|
     "lib/pennies/mongo/money_extensions.rb",
     "lib/pennies/validators/currency_code_validator.rb"
   ]
-  s.homepage = "http://github.com/jzajpt/pennies"
-  s.require_paths = ["lib"]
-  s.rubygems_version = "1.8.10"
-  s.summary = "Money and Currency handling library."
+  s.homepage = "http://github.com/jzajpt/pennies".freeze
+  s.rubygems_version = "2.6.12".freeze
+  s.summary = "Money and Currency handling library.".freeze
 
   if s.respond_to? :specification_version then
-    s.specification_version = 3
+    s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<activesupport>, ["~> 3.0"])
-      s.add_runtime_dependency(%q<activemodel>, ["~> 3.0"])
-      s.add_runtime_dependency(%q<mongoid>, [">= 0"])
-      s.add_runtime_dependency(%q<bson>, [">= 0"])
-      s.add_development_dependency(%q<rspec>, ["~> 2.1.0"])
+      s.add_runtime_dependency(%q<activesupport>.freeze, ["~> 3.0"])
+      s.add_runtime_dependency(%q<activemodel>.freeze, ["~> 3.0"])
+      s.add_runtime_dependency(%q<mongoid>.freeze, ["~> 3.0"])
+      s.add_development_dependency(%q<rspec>.freeze, ["~> 2.1.0"])
     else
-      s.add_dependency(%q<activesupport>, ["~> 3.0"])
-      s.add_dependency(%q<activemodel>, ["~> 3.0"])
-      s.add_dependency(%q<mongoid>, [">= 0"])
-      s.add_dependency(%q<bson>, [">= 0"])
-      s.add_dependency(%q<rspec>, ["~> 2.1.0"])
+      s.add_dependency(%q<activesupport>.freeze, ["~> 3.0"])
+      s.add_dependency(%q<activemodel>.freeze, ["~> 3.0"])
+      s.add_dependency(%q<mongoid>.freeze, ["~> 3.0"])
+      s.add_dependency(%q<rspec>.freeze, ["~> 2.1.0"])
     end
   else
-    s.add_dependency(%q<activesupport>, ["~> 3.0"])
-    s.add_dependency(%q<activemodel>, ["~> 3.0"])
-    s.add_dependency(%q<mongoid>, [">= 0"])
-    s.add_dependency(%q<bson>, [">= 0"])
-    s.add_dependency(%q<rspec>, ["~> 2.1.0"])
+    s.add_dependency(%q<activesupport>.freeze, ["~> 3.0"])
+    s.add_dependency(%q<activemodel>.freeze, ["~> 3.0"])
+    s.add_dependency(%q<mongoid>.freeze, ["~> 3.0"])
+    s.add_dependency(%q<rspec>.freeze, ["~> 2.1.0"])
   end
 end