diff --git a/Gemfile b/Gemfile
index bd0bde0..93c4876 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,9 +13,8 @@ gem "ruby-prof"
 # Bundle edge Rails instead:
 # gem 'rails', git: 'https://github.com/rails/rails'
 
-gem "crack", "0.3.2"
-gem "foreman"
-gem "sqlite3"
+gem 'sqlite3'
+gem 'foreman'
 
 # Pry for Rails, not in dev group in case running via prod/staging @ a training
 gem "pry-rails"
@@ -68,7 +67,7 @@ gem "jquery-rails"
  gem "bcrypt"
 
 # Use unicorn as the app server
- gem "unicorn"
+gem "unicorn"
 
 # Pow related gem
 gem "powder"
diff --git a/Gemfile.lock b/Gemfile.lock
index f0add55..7c21f12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,6 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
     contracts (0.16.0)
-    crack (0.3.2)
     crass (1.0.3)
     cucumber (3.1.0)
       builder (>= 2.1.2)
@@ -336,7 +335,6 @@ DEPENDENCIES
   bundler-audit
   capybara
   coffee-rails
-  crack (= 0.3.2)
   database_cleaner
   execjs
   foreman