diff --git a/Rakefile b/Rakefile
index 65a6fae..0a35df7 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,36 +1,8 @@
-require 'rubygems'
+require 'bundler'
+Bundler::GemHelper.install_tasks
+
 require 'rake/rdoctask'
-require 'rake/gempackagetask'
-require 'rubygems/specification'
 require 'rspec/core/rake_task'
-require 'lib/validates_timeliness/version'
-
-GEM_NAME = "validates_timeliness"
-GEM_VERSION = ValidatesTimeliness::VERSION
-
-spec = Gem::Specification.new do |s|
-  s.name = GEM_NAME
-  s.version = GEM_VERSION
-  s.platform = Gem::Platform::RUBY
-  s.summary = %q{Date and time validation plugin for Rails which allows custom formats}
-  s.description = s.summary
-  s.author = "Adam Meehan"
-  s.email = "adam.meehan@gmail.com"
-  s.homepage = "http://github.com/adzap/validates_timeliness"
-  s.require_path = 'lib'
-
-  s.add_runtime_dependency 'timeliness', '~> 0.3.2'
-
-  s.files       = `git ls-files`.split("\n") - %w{ .rspec .gitignore autotest/discover.rb Gemfile Gemfile.lock }
-  s.test_files  = `git ls-files -- {test,spec,features}/*`.split("\n")
-  s.executables = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
-
-  s.has_rdoc = true
-  s.extra_rdoc_files = ["README.rdoc", "CHANGELOG.rdoc", "LICENSE"]
-end
-
-desc 'Default: run specs.'
-task :default => :spec
 
 desc "Run specs"
 RSpec::Core::RakeTask.new(:spec)
@@ -50,18 +22,5 @@ Rake::RDocTask.new(:rdoc) do |rdoc|
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
-Rake::GemPackageTask.new(spec) do |pkg|
-  pkg.gem_spec = spec
-end
-
-desc "Install the gem locally"
-task :install => [:package] do
-  sh %{gem install pkg/#{GEM_NAME}-#{GEM_VERSION}}
-end
-
-desc "Create a gemspec file"
-task :make_spec do
-  File.open("#{GEM_NAME}.gemspec", "w") do |file|
-    file.puts spec.to_ruby
-  end
-end
+desc 'Default: run specs.'
+task :default => :spec
diff --git a/validates_timeliness.gemspec b/validates_timeliness.gemspec
index ebd49c2..c8325d4 100644
--- a/validates_timeliness.gemspec
+++ b/validates_timeliness.gemspec
@@ -1,32 +1,20 @@
 # -*- encoding: utf-8 -*-
+$:.push File.expand_path("../lib", __FILE__)
+require "validates_timeliness/version"
 
 Gem::Specification.new do |s|
-  s.name = %q{validates_timeliness}
-  s.version = "3.0.5"
+  s.name        = "validates_timeliness"
+  s.version     = ValidatesTimeliness::VERSION
+  s.authors     = ["Adam Meehan"]
+  s.summary     = %q{Date and time validation plugin for Rails which allows custom formats}
+  s.description = %q{Adds validation methods to ActiveModel for validating dates and times. Works with multiple ORMS.}
+  s.email       = %q{adam.meehan@gmail.com}
+  s.homepage    = %q{http://github.com/adzap/validates_timeliness}
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
-  s.authors = ["Adam Meehan"]
-  s.date = %q{2011-01-29}
-  s.description = %q{Date and time validation plugin for Rails which allows custom formats}
-  s.email = %q{adam.meehan@gmail.com}
+  s.require_paths    = ["lib"]
+  s.files            = `git ls-files`.split("\n") - %w{ .gitignore .rspec Gemfile Gemfile.lock autotest/discover.rb }
+  s.test_files       = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.extra_rdoc_files = ["README.rdoc", "CHANGELOG.rdoc", "LICENSE"]
-  s.files = ["CHANGELOG.rdoc", "LICENSE", "README.rdoc", "Rakefile", "init.rb", "lib/generators/validates_timeliness/install_generator.rb", "lib/generators/validates_timeliness/templates/en.yml", "lib/generators/validates_timeliness/templates/validates_timeliness.rb", "lib/validates_timeliness.rb", "lib/validates_timeliness/attribute_methods.rb", "lib/validates_timeliness/conversion.rb", "lib/validates_timeliness/extensions.rb", "lib/validates_timeliness/extensions/date_time_select.rb", "lib/validates_timeliness/extensions/multiparameter_handler.rb", "lib/validates_timeliness/helper_methods.rb", "lib/validates_timeliness/orm/active_record.rb", "lib/validates_timeliness/orm/mongoid.rb", "lib/validates_timeliness/railtie.rb", "lib/validates_timeliness/validator.rb", "lib/validates_timeliness/version.rb", "spec/spec_helper.rb", "spec/support/config_helper.rb", "spec/support/model_helpers.rb", "spec/support/test_model.rb", "spec/validates_timeliness/attribute_methods_spec.rb", "spec/validates_timeliness/conversion_spec.rb", "spec/validates_timeliness/extensions/date_time_select_spec.rb", "spec/validates_timeliness/extensions/multiparameter_handler_spec.rb", "spec/validates_timeliness/helper_methods_spec.rb", "spec/validates_timeliness/orm/active_record_spec.rb", "spec/validates_timeliness/orm/mongoid_spec.rb", "spec/validates_timeliness/validator/after_spec.rb", "spec/validates_timeliness/validator/before_spec.rb", "spec/validates_timeliness/validator/is_at_spec.rb", "spec/validates_timeliness/validator/on_or_after_spec.rb", "spec/validates_timeliness/validator/on_or_before_spec.rb", "spec/validates_timeliness/validator_spec.rb", "spec/validates_timeliness_spec.rb", "validates_timeliness.gemspec"]
-  s.homepage = %q{http://github.com/adzap/validates_timeliness}
-  s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.3.7}
-  s.summary = %q{Date and time validation plugin for Rails which allows custom formats}
-  s.test_files = ["spec/spec_helper.rb", "spec/support/config_helper.rb", "spec/support/model_helpers.rb", "spec/support/test_model.rb", "spec/validates_timeliness/attribute_methods_spec.rb", "spec/validates_timeliness/conversion_spec.rb", "spec/validates_timeliness/extensions/date_time_select_spec.rb", "spec/validates_timeliness/extensions/multiparameter_handler_spec.rb", "spec/validates_timeliness/helper_methods_spec.rb", "spec/validates_timeliness/orm/active_record_spec.rb", "spec/validates_timeliness/orm/mongoid_spec.rb", "spec/validates_timeliness/validator/after_spec.rb", "spec/validates_timeliness/validator/before_spec.rb", "spec/validates_timeliness/validator/is_at_spec.rb", "spec/validates_timeliness/validator/on_or_after_spec.rb", "spec/validates_timeliness/validator/on_or_before_spec.rb", "spec/validates_timeliness/validator_spec.rb", "spec/validates_timeliness_spec.rb"]
 
-  if s.respond_to? :specification_version then
-    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
-    s.specification_version = 3
-
-    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<timeliness>, ["~> 0.3.2"])
-    else
-      s.add_dependency(%q<timeliness>, ["~> 0.3.2"])
-    end
-  else
-    s.add_dependency(%q<timeliness>, ["~> 0.3.2"])
-  end
+  s.add_runtime_dependency(%q<timeliness>, ["~> 0.3.3"])
 end