diff --git a/.rubocop.yml b/.rubocop.yml
index 9d899265..d47eb00e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -52,3 +52,6 @@ Style/SymbolArray:
 
 Metrics/LineLength:
   Max: 90
+
+Bundler/OrderedGems:
+  Enabled: false
diff --git a/Gemfile b/Gemfile
index 383cc040..d2609c96 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,21 +1,12 @@
 source 'https://rubygems.org'
 gemspec
+
 gem 'rake', '~> 10.0'
+gem 'gist'
+gem 'yard'
+gem 'rspec', '~> 3.8.0'
 
-group :development do
-  gem 'gist'
-  gem 'yard'
-
-  # Rubocop supports only >=2.2.0
-  if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.2.0')
-    gem 'rubocop', '= 0.65.0', require: false
-  end
-end
-
-group :test do
-  gem 'rspec', '~> 3.8.0'
-end
-
-group :development, :test do
-  gem 'simplecov', '~> 0.8.0'
+# Rubocop supports only >=2.2.0
+if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.2.0')
+  gem 'rubocop', '= 0.65.0', require: false
 end