diff --git a/Appraisals b/Appraisals
new file mode 100644
index 00000000..d49261ba
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,9 @@
+appraise "rails3" do
+  gem "rails", "~> 3.2.13"
+  gem "sass-rails", "~> 3.2.6"
+end
+
+appraise "rails4" do
+  gem "rails", "4.0.0"
+  gem "sass-rails", "4.0.0"
+end
diff --git a/Gemfile b/Gemfile
index 3f8dd098..d86da4be 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,40 +5,26 @@ source "http://rubygems.org"
 # development dependencies will be added by default to the :development group.
 gemspec
 
-# support multiple rails versions
-# http://schneems.com/post/50991826838/testing-against-multiple-rails-versions
-rails_version = ENV["RAILS_VERSION"] || "default"
-
-rails = case rails_version
-when "master"
-  {github: "rails/rails"}
-when "default"
-  "3.2.13"
-else
-  "~> #{rails_version}"
-end
-gem "rails", rails
-
-sass_version = ENV["SASS_VERSION"] || ">= 3.1"
-
 # jquery-rails is used by the dummy application
 gem "jquery-rails"
 gem "pg"
 gem "ice_cube"
 
+group :development do
+  gem "pry"
+end
+
 group :test do
   gem "rspec-rails", "2.13.0"
-  gem "rspec", "2.13.0"
   gem "spork", "~> 0.9.2"
   gem "guard"
   gem "guard-spork"
   gem "guard-rspec"
-
   gem 'rb-fsevent', :require => false
 end
 
 group :assets do
-  gem "sass-rails", sass_version
+  gem "sass-rails"
   gem "coffee-rails"
   gem "uglifier"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index a968b6bf..677893ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,6 +38,9 @@ GEM
     activesupport (3.2.13)
       i18n (= 0.6.1)
       multi_json (~> 1.0)
+    appraisal (0.5.2)
+      bundler
+      rake
     arel (3.0.2)
     builder (3.0.4)
     childprocess (0.3.9)
@@ -165,6 +168,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  appraisal
   coffee-rails
   guard
   guard-rspec
@@ -173,11 +177,10 @@ DEPENDENCIES
   jquery-rails
   pg
   pry
-  rails (= 3.2.13)
   rb-fsevent
   recurring_select!
   rspec (= 2.13.0)
   rspec-rails (= 2.13.0)
-  sass-rails (>= 3.1)
+  sass-rails
   spork (~> 0.9.2)
   uglifier
diff --git a/README.md b/README.md
index c0434cd3..df0e5f79 100644
--- a/README.md
+++ b/README.md
@@ -81,11 +81,10 @@ love to get jasmine running also, but haven't had time yet.
 Tests can be ran against different versions of Rails like so:
 
 ```
-RAILS_VERSION=4.0.0 SASS_VERSION=4.0.0 bundle update
-RAILS_VERSION=4.0.0 SASS_VERSION=4.0.0 bundle exec rspec spec
+rake appraisal:install
+rake appraisal
 ```
 
-
 Feel free to open issues or send pull requests.
 
 Licensing
diff --git a/Rakefile b/Rakefile
index 6d5f6293..1c4c1cfe 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,17 +1,16 @@
 #!/usr/bin/env rake
-begin
-  require 'bundler/setup'
-rescue LoadError
-  puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
-end
-begin
-  require 'rdoc/task'
-rescue LoadError
-  require 'rdoc/rdoc'
-  require 'rake/rdoctask'
-  RDoc::Task = Rake::RDocTask
-end
+require 'rubygems'
+require 'bundler/setup'
+require 'appraisal'
+
+require 'rspec/core/rake_task'
+RSpec::Core::RakeTask.new(:spec)
+task :default => :spec
 
+require 'rubygems/package_task'
+Bundler::GemHelper.install_tasks
+
+require 'rdoc/task'
 RDoc::Task.new(:rdoc) do |rdoc|
   rdoc.rdoc_dir = 'rdoc'
   rdoc.title    = 'RecurringSelect'
@@ -20,20 +19,6 @@ RDoc::Task.new(:rdoc) do |rdoc|
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
-APP_RAKEFILE = File.expand_path("../test/dummy/Rakefile", __FILE__)
+APP_RAKEFILE = File.expand_path("../spec/dummy/Rakefile", __FILE__)
 load 'rails/tasks/engine.rake'
 
-
-Bundler::GemHelper.install_tasks
-
-require 'rake/testtask'
-
-Rake::TestTask.new(:test) do |t|
-  t.libs << 'lib'
-  t.libs << 'test'
-  t.pattern = 'test/**/*_test.rb'
-  t.verbose = false
-end
-
-
-task :default => :test
diff --git a/gemfiles/rails3.gemfile b/gemfiles/rails3.gemfile
new file mode 100644
index 00000000..4e678112
--- /dev/null
+++ b/gemfiles/rails3.gemfile
@@ -0,0 +1,11 @@
+# This file was generated by Appraisal
+
+source "http://rubygems.org"
+
+gem "jquery-rails"
+gem "pg"
+gem "ice_cube"
+gem "rails", "~> 3.2.13"
+gem "sass-rails", "~> 3.2.6"
+
+gemspec :path=>"../"
\ No newline at end of file
diff --git a/gemfiles/rails3.gemfile.lock b/gemfiles/rails3.gemfile.lock
new file mode 100644
index 00000000..83cccf22
--- /dev/null
+++ b/gemfiles/rails3.gemfile.lock
@@ -0,0 +1,133 @@
+PATH
+  remote: /Users/nathany/Dropbox/Development/jobber/recurring_select
+  specs:
+    recurring_select (1.0.2)
+      coffee-rails (>= 3.1)
+      ice_cube (>= 0.8)
+      jquery-rails
+      rails (>= 3.1)
+      sass-rails (>= 3.1)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    actionmailer (3.2.13)
+      actionpack (= 3.2.13)
+      mail (~> 2.5.3)
+    actionpack (3.2.13)
+      activemodel (= 3.2.13)
+      activesupport (= 3.2.13)
+      builder (~> 3.0.0)
+      erubis (~> 2.7.0)
+      journey (~> 1.0.4)
+      rack (~> 1.4.5)
+      rack-cache (~> 1.2)
+      rack-test (~> 0.6.1)
+      sprockets (~> 2.2.1)
+    activemodel (3.2.13)
+      activesupport (= 3.2.13)
+      builder (~> 3.0.0)
+    activerecord (3.2.13)
+      activemodel (= 3.2.13)
+      activesupport (= 3.2.13)
+      arel (~> 3.0.2)
+      tzinfo (~> 0.3.29)
+    activeresource (3.2.13)
+      activemodel (= 3.2.13)
+      activesupport (= 3.2.13)
+    activesupport (3.2.13)
+      i18n (= 0.6.1)
+      multi_json (~> 1.0)
+    appraisal (0.5.2)
+      bundler
+      rake
+    arel (3.0.2)
+    builder (3.0.4)
+    coffee-rails (3.2.2)
+      coffee-script (>= 2.2.0)
+      railties (~> 3.2.0)
+    coffee-script (2.2.0)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.6.2)
+    diff-lcs (1.2.4)
+    erubis (2.7.0)
+    execjs (1.4.0)
+      multi_json (~> 1.0)
+    hike (1.2.3)
+    i18n (0.6.1)
+    ice_cube (0.11.0)
+    journey (1.0.4)
+    jquery-rails (3.0.1)
+      railties (>= 3.0, < 5.0)
+      thor (>= 0.14, < 2.0)
+    json (1.8.0)
+    mail (2.5.4)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.23)
+    multi_json (1.7.7)
+    pg (0.15.1)
+    polyglot (0.3.3)
+    rack (1.4.5)
+    rack-cache (1.2)
+      rack (>= 0.4)
+    rack-ssl (1.3.3)
+      rack
+    rack-test (0.6.2)
+      rack (>= 1.0)
+    rails (3.2.13)
+      actionmailer (= 3.2.13)
+      actionpack (= 3.2.13)
+      activerecord (= 3.2.13)
+      activeresource (= 3.2.13)
+      activesupport (= 3.2.13)
+      bundler (~> 1.0)
+      railties (= 3.2.13)
+    railties (3.2.13)
+      actionpack (= 3.2.13)
+      activesupport (= 3.2.13)
+      rack-ssl (~> 1.3.2)
+      rake (>= 0.8.7)
+      rdoc (~> 3.4)
+      thor (>= 0.14.6, < 2.0)
+    rake (10.1.0)
+    rdoc (3.12.2)
+      json (~> 1.4)
+    rspec (2.13.0)
+      rspec-core (~> 2.13.0)
+      rspec-expectations (~> 2.13.0)
+      rspec-mocks (~> 2.13.0)
+    rspec-core (2.13.1)
+    rspec-expectations (2.13.0)
+      diff-lcs (>= 1.1.3, < 2.0)
+    rspec-mocks (2.13.1)
+    sass (3.2.9)
+    sass-rails (3.2.6)
+      railties (~> 3.2.0)
+      sass (>= 3.1.10)
+      tilt (~> 1.3)
+    sprockets (2.2.2)
+      hike (~> 1.2)
+      multi_json (~> 1.0)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    thor (0.18.1)
+    tilt (1.4.1)
+    treetop (1.4.14)
+      polyglot
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.37)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  ice_cube
+  jquery-rails
+  pg
+  rails (~> 3.2.13)
+  recurring_select!
+  rspec (= 2.13.0)
+  sass-rails (~> 3.2.6)
diff --git a/gemfiles/rails4.gemfile b/gemfiles/rails4.gemfile
new file mode 100644
index 00000000..45c7702f
--- /dev/null
+++ b/gemfiles/rails4.gemfile
@@ -0,0 +1,11 @@
+# This file was generated by Appraisal
+
+source "http://rubygems.org"
+
+gem "jquery-rails"
+gem "pg"
+gem "ice_cube"
+gem "rails", "4.0.0"
+gem "sass-rails", "4.0.0"
+
+gemspec :path=>"../"
\ No newline at end of file
diff --git a/gemfiles/rails4.gemfile.lock b/gemfiles/rails4.gemfile.lock
new file mode 100644
index 00000000..171a56b6
--- /dev/null
+++ b/gemfiles/rails4.gemfile.lock
@@ -0,0 +1,128 @@
+PATH
+  remote: /Users/nathany/Dropbox/Development/jobber/recurring_select
+  specs:
+    recurring_select (1.0.2)
+      coffee-rails (>= 3.1)
+      ice_cube (>= 0.8)
+      jquery-rails
+      rails (>= 3.1)
+      sass-rails (>= 3.1)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    actionmailer (4.0.0)
+      actionpack (= 4.0.0)
+      mail (~> 2.5.3)
+    actionpack (4.0.0)
+      activesupport (= 4.0.0)
+      builder (~> 3.1.0)
+      erubis (~> 2.7.0)
+      rack (~> 1.5.2)
+      rack-test (~> 0.6.2)
+    activemodel (4.0.0)
+      activesupport (= 4.0.0)
+      builder (~> 3.1.0)
+    activerecord (4.0.0)
+      activemodel (= 4.0.0)
+      activerecord-deprecated_finders (~> 1.0.2)
+      activesupport (= 4.0.0)
+      arel (~> 4.0.0)
+    activerecord-deprecated_finders (1.0.3)
+    activesupport (4.0.0)
+      i18n (~> 0.6, >= 0.6.4)
+      minitest (~> 4.2)
+      multi_json (~> 1.3)
+      thread_safe (~> 0.1)
+      tzinfo (~> 0.3.37)
+    appraisal (0.5.2)
+      bundler
+      rake
+    arel (4.0.0)
+    atomic (1.1.9)
+    builder (3.1.4)
+    coffee-rails (4.0.0)
+      coffee-script (>= 2.2.0)
+      railties (>= 4.0.0.beta, < 5.0)
+    coffee-script (2.2.0)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.6.2)
+    diff-lcs (1.2.4)
+    erubis (2.7.0)
+    execjs (1.4.0)
+      multi_json (~> 1.0)
+    hike (1.2.3)
+    i18n (0.6.4)
+    ice_cube (0.11.0)
+    jquery-rails (3.0.1)
+      railties (>= 3.0, < 5.0)
+      thor (>= 0.14, < 2.0)
+    mail (2.5.4)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.23)
+    minitest (4.7.5)
+    multi_json (1.7.7)
+    pg (0.15.1)
+    polyglot (0.3.3)
+    rack (1.5.2)
+    rack-test (0.6.2)
+      rack (>= 1.0)
+    rails (4.0.0)
+      actionmailer (= 4.0.0)
+      actionpack (= 4.0.0)
+      activerecord (= 4.0.0)
+      activesupport (= 4.0.0)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.0.0)
+      sprockets-rails (~> 2.0.0)
+    railties (4.0.0)
+      actionpack (= 4.0.0)
+      activesupport (= 4.0.0)
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (10.1.0)
+    rspec (2.13.0)
+      rspec-core (~> 2.13.0)
+      rspec-expectations (~> 2.13.0)
+      rspec-mocks (~> 2.13.0)
+    rspec-core (2.13.1)
+    rspec-expectations (2.13.0)
+      diff-lcs (>= 1.1.3, < 2.0)
+    rspec-mocks (2.13.1)
+    sass (3.2.9)
+    sass-rails (4.0.0)
+      railties (>= 4.0.0.beta, < 5.0)
+      sass (>= 3.1.10)
+      sprockets-rails (~> 2.0.0)
+    sprockets (2.10.0)
+      hike (~> 1.2)
+      multi_json (~> 1.0)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    sprockets-rails (2.0.0)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      sprockets (~> 2.8)
+    thor (0.18.1)
+    thread_safe (0.1.0)
+      atomic
+    tilt (1.4.1)
+    treetop (1.4.14)
+      polyglot
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.37)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  ice_cube
+  jquery-rails
+  pg
+  rails (= 4.0.0)
+  recurring_select!
+  rspec (= 2.13.0)
+  sass-rails (= 4.0.0)
diff --git a/recurring_select.gemspec b/recurring_select.gemspec
index f89a3269..f143ab49 100644
--- a/recurring_select.gemspec
+++ b/recurring_select.gemspec
@@ -22,5 +22,6 @@ Gem::Specification.new do |s|
   s.add_dependency "sass-rails", ">= 3.1"
   s.add_dependency "coffee-rails", ">= 3.1"
 
-  s.add_development_dependency "pry"
+  s.add_development_dependency "appraisal"
+  s.add_development_dependency "rspec", "2.13.0"
 end