diff --git a/.gitignore b/.gitignore
index 2b54990..b2c9314 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ tmp
 nbproject
 *.swp
 spec/dummy
+Gemfile.lock
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 06714dc..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,209 +0,0 @@
-PATH
-  remote: .
-  specs:
-    spree_product_zoom (1.3)
-      spree_core (~> 2.1.0)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    actionmailer (4.0.3)
-      actionpack (= 4.0.3)
-      mail (~> 2.5.4)
-    actionpack (4.0.3)
-      activesupport (= 4.0.3)
-      builder (~> 3.1.0)
-      erubis (~> 2.7.0)
-      rack (~> 1.5.2)
-      rack-test (~> 0.6.2)
-    active_utils (2.0.1)
-      activesupport (>= 2.3.11)
-      i18n
-    activemerchant (1.42.5)
-      active_utils (~> 2.0, >= 2.0.1)
-      activesupport (>= 2.3.14, < 5.0.0)
-      builder (>= 2.1.2, < 4.0.0)
-      i18n (~> 0.5)
-      json (~> 1.7)
-      money (< 7.0.0)
-      nokogiri (~> 1.4)
-    activemodel (4.0.3)
-      activesupport (= 4.0.3)
-      builder (~> 3.1.0)
-    activerecord (4.0.3)
-      activemodel (= 4.0.3)
-      activerecord-deprecated_finders (~> 1.0.2)
-      activesupport (= 4.0.3)
-      arel (~> 4.0.0)
-    activerecord-deprecated_finders (1.0.3)
-    activesupport (4.0.3)
-      i18n (~> 0.6, >= 0.6.4)
-      minitest (~> 4.2)
-      multi_json (~> 1.3)
-      thread_safe (~> 0.1)
-      tzinfo (~> 0.3.37)
-    acts_as_list (0.3.0)
-      activerecord (>= 3.0)
-    arel (4.0.2)
-    atomic (1.1.14)
-    awesome_nested_set (3.0.0.rc.3)
-      activerecord (>= 4.0.0, < 5)
-    aws-sdk (1.27.0)
-      json (~> 1.4)
-      nokogiri (>= 1.4.4)
-      uuidtools (~> 2.1)
-    builder (3.1.4)
-    cancan (1.6.10)
-    capybara (1.0.1)
-      mime-types (>= 1.16)
-      nokogiri (>= 1.3.3)
-      rack (>= 1.0.0)
-      rack-test (>= 0.5.4)
-      selenium-webdriver (~> 2.0)
-      xpath (~> 0.1.4)
-    childprocess (0.5.1)
-      ffi (~> 1.0, >= 1.0.11)
-    climate_control (0.0.3)
-      activesupport (>= 3.0)
-    cocaine (0.5.3)
-      climate_control (>= 0.0.3, < 1.0)
-    colorize (0.6.0)
-    deface (1.0.0)
-      colorize (>= 0.5.8)
-      nokogiri (~> 1.6.0)
-      rails (>= 3.1)
-    diff-lcs (1.2.5)
-    erubis (2.7.0)
-    factory_girl (2.6.4)
-      activesupport (>= 2.3.9)
-    ffaker (1.23.0)
-    ffi (1.9.3)
-    highline (1.6.20)
-    hike (1.2.3)
-    httparty (0.13.0)
-      json (~> 1.8)
-      multi_xml (>= 0.5.2)
-    i18n (0.6.9)
-    json (1.8.1)
-    kaminari (0.15.1)
-      actionpack (>= 3.0.0)
-      activesupport (>= 3.0.0)
-    mail (2.5.4)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.25.1)
-    mini_portile (0.5.2)
-    minitest (4.7.5)
-    monetize (0.1.4)
-    money (6.0.1)
-      i18n (~> 0.6.4)
-      monetize (~> 0.1.3)
-    multi_json (1.8.4)
-    multi_xml (0.5.5)
-    nokogiri (1.6.1)
-      mini_portile (~> 0.5.0)
-    paperclip (3.4.2)
-      activemodel (>= 3.0.0)
-      activerecord (>= 3.0.0)
-      activesupport (>= 3.0.0)
-      cocaine (~> 0.5.0)
-      mime-types
-    paranoia (2.0.2)
-      activerecord (~> 4.0)
-    polyamorous (0.6.4)
-      activerecord (>= 3.0)
-    polyglot (0.3.4)
-    rack (1.5.2)
-    rack-test (0.6.2)
-      rack (>= 1.0)
-    rails (4.0.3)
-      actionmailer (= 4.0.3)
-      actionpack (= 4.0.3)
-      activerecord (= 4.0.3)
-      activesupport (= 4.0.3)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 4.0.3)
-      sprockets-rails (~> 2.0.0)
-    railties (4.0.3)
-      actionpack (= 4.0.3)
-      activesupport (= 4.0.3)
-      rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
-    rake (10.1.1)
-    ransack (1.1.0)
-      actionpack (>= 3.0)
-      activerecord (>= 3.0)
-      polyamorous (~> 0.6.0)
-    rspec-core (2.14.7)
-    rspec-expectations (2.14.5)
-      diff-lcs (>= 1.1.3, < 2.0)
-    rspec-mocks (2.14.5)
-    rspec-rails (2.14.1)
-      actionpack (>= 3.0)
-      activemodel (>= 3.0)
-      activesupport (>= 3.0)
-      railties (>= 3.0)
-      rspec-core (~> 2.14.0)
-      rspec-expectations (~> 2.14.0)
-      rspec-mocks (~> 2.14.0)
-    rubyzip (1.1.0)
-    selenium-webdriver (2.40.0)
-      childprocess (>= 0.5.0)
-      multi_json (~> 1.0)
-      rubyzip (~> 1.0)
-      websocket (~> 1.0.4)
-    spree_core (2.1.5)
-      activemerchant (~> 1.42.3)
-      acts_as_list (= 0.3.0)
-      awesome_nested_set (~> 3.0.0.rc.3)
-      aws-sdk (= 1.27.0)
-      cancan (~> 1.6.10)
-      deface (~> 1.0.0)
-      ffaker (~> 1.16)
-      highline (~> 1.6.18)
-      httparty (~> 0.11)
-      json (~> 1.7)
-      kaminari (~> 0.15.0)
-      paperclip (~> 3.4.1)
-      paranoia (~> 2.0)
-      rails (~> 4.0.0)
-      ransack (= 1.1.0)
-      state_machine (= 1.2.0)
-      stringex (~> 1.5.1)
-      truncate_html (= 0.9.2)
-    sprockets (2.11.0)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.0.1)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (~> 2.8)
-    sqlite3 (1.3.8)
-    state_machine (1.2.0)
-    stringex (1.5.1)
-    thor (0.18.1)
-    thread_safe (0.1.3)
-      atomic
-    tilt (1.4.1)
-    treetop (1.4.15)
-      polyglot
-      polyglot (>= 0.3.1)
-    truncate_html (0.9.2)
-    tzinfo (0.3.38)
-    uuidtools (2.1.4)
-    websocket (1.0.7)
-    xpath (0.1.4)
-      nokogiri (~> 1.3)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  capybara (= 1.0.1)
-  factory_girl (~> 2.6.4)
-  ffaker
-  rspec-rails (~> 2.9)
-  spree_product_zoom!
-  sqlite3
diff --git a/spree_product_zoom.gemspec b/spree_product_zoom.gemspec
index b384c47..d980a83 100644
--- a/spree_product_zoom.gemspec
+++ b/spree_product_zoom.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.requirements << 'none'
 
-  s.add_dependency 'spree_core', '~> 2.2.0.beta'
+  s.add_dependency 'spree_core', '~> 2.2.0'
 
   s.add_development_dependency 'capybara', '1.0.1'
   s.add_development_dependency 'factory_girl', '~> 2.6.4'