diff --git a/.rubocop.yml b/.rubocop.yml
index d62b7f2..65e4510 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,5 +1,8 @@
 inherit_from:
   - https://raw.githubusercontent.com/thoughtbot/guides/master/style/ruby/.rubocop.yml
+AllCops:
+  Exclude:
+    - 'gemfiles/*'
 
 # TODO:
 # This configuration was generated by
@@ -10,91 +13,6 @@ inherit_from:
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 4
-# Cop supports --auto-correct.
-# Configuration parameters: Include, TreatCommentsAsGroupSeparators.
-# Include: **/*.gemfile, **/Gemfile, **/gems.rb
-Bundler/OrderedGems:
-  Exclude:
-    - 'gemfiles/4.2.gemfile'
-    - 'gemfiles/5.0.gemfile'
-    - 'gemfiles/5.1.gemfile'
-    - 'gemfiles/5.2.gemfile'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Layout/ElseAlignment:
-  Exclude:
-    - 'lib/factory_bot/factory.rb'
-
-# Offense count: 3
-# Cop supports --auto-correct.
-# Configuration parameters: AllowAdjacentOneLineDefs, NumberOfEmptyLines.
-Layout/EmptyLineBetweenDefs:
-  Exclude:
-    - 'lib/factory_bot/null_factory.rb'
-
-# Offense count: 8
-# Cop supports --auto-correct.
-Layout/EmptyLinesAroundAccessModifier:
-  Exclude:
-    - 'lib/factory_bot/callback.rb'
-    - 'lib/factory_bot/declaration.rb'
-    - 'lib/factory_bot/declaration/association.rb'
-    - 'lib/factory_bot/declaration/dynamic.rb'
-    - 'lib/factory_bot/declaration/implicit.rb'
-    - 'lib/factory_bot/trait.rb'
-    - 'spec/acceptance/attribute_existing_on_object_spec.rb'
-    - 'spec/acceptance/private_attributes_spec.rb'
-
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: empty_lines, no_empty_lines
-Layout/EmptyLinesAroundBlockBody:
-  Exclude:
-    - 'spec/acceptance/activesupport_instrumentation_spec.rb'
-    - 'spec/factory_bot/definition_proxy_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: empty_lines, empty_lines_except_namespace, empty_lines_special, no_empty_lines, beginning_only, ending_only
-Layout/EmptyLinesAroundClassBody:
-  Exclude:
-    - 'lib/factory_bot/linter.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: empty_lines, empty_lines_except_namespace, empty_lines_special, no_empty_lines
-Layout/EmptyLinesAroundModuleBody:
-  Exclude:
-    - 'lib/factory_bot/sequence.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyleAlignWith, AutoCorrect, Severity.
-# SupportedStylesAlignWith: keyword, variable, start_of_line
-Layout/EndAlignment:
-  Exclude:
-    - 'lib/factory_bot/factory.rb'
-
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: AllowForAlignment, ForceEqualSignAlignment.
-Layout/ExtraSpacing:
-  Exclude:
-    - 'spec/acceptance/attribute_existing_on_object_spec.rb'
-    - 'spec/acceptance/parent_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: IndentationWidth.
-Layout/IndentAssignment:
-  Exclude:
-    - 'lib/factory_bot/linter.rb'
-
 # Offense count: 3
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
@@ -104,51 +22,6 @@ Layout/IndentHeredoc:
     - 'lib/factory_bot/linter.rb'
     - 'spec/acceptance/lint_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: Width, IgnoredPatterns.
-Layout/IndentationWidth:
-  Exclude:
-    - 'lib/factory_bot/factory.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Layout/LeadingCommentSpace:
-  Exclude:
-    - 'spec/acceptance/parent_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: space, no_space
-Layout/SpaceAroundEqualsInParameterDefault:
-  Exclude:
-    - 'lib/factory_bot/null_object.rb'
-
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBrackets.
-# SupportedStyles: space, no_space, compact
-# SupportedStylesForEmptyBrackets: space, no_space
-Layout/SpaceInsideArrayLiteralBrackets:
-  Exclude:
-    - 'spec/acceptance/traits_spec.rb'
-
-# Offense count: 8
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBraces, SpaceBeforeBlockParameters.
-# SupportedStyles: space, no_space
-# SupportedStylesForEmptyBraces: space, no_space
-Layout/SpaceInsideBlockBraces:
-  Exclude:
-    - 'lib/factory_bot/attribute.rb'
-    - 'lib/factory_bot/definition.rb'
-    - 'spec/acceptance/parent_spec.rb'
-    - 'spec/acceptance/traits_spec.rb'
-    - 'spec/acceptance/transient_attributes_spec.rb'
-    - 'spec/factory_bot/attribute/dynamic_spec.rb'
-    - 'spec/factory_bot/definition_proxy_spec.rb'
-
 # Offense count: 1
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyleForEmptyBraces.
@@ -157,20 +30,6 @@ Layout/SpaceInsideBlockBraces:
 Layout/SpaceInsideHashLiteralBraces:
   EnforcedStyle: space
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Layout/SpaceInsideParens:
-  Exclude:
-    - 'spec/factory_bot/attribute/dynamic_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: final_newline, final_blank_line
-Layout/TrailingBlankLines:
-  Exclude:
-    - 'Rakefile'
-
 # Offense count: 1
 Lint/RescueException:
   Exclude:
@@ -293,10 +152,6 @@ Style/FormatStringToken:
 Style/HashSyntax:
   Exclude:
     - 'Rakefile'
-    - 'gemfiles/4.2.gemfile'
-    - 'gemfiles/5.0.gemfile'
-    - 'gemfiles/5.1.gemfile'
-    - 'gemfiles/5.2.gemfile'
     - 'spec/acceptance/build_stubbed_spec.rb'
     - 'spec/acceptance/nested_attributes_spec.rb'
     - 'spec/acceptance/transient_attributes_spec.rb'
diff --git a/Rakefile b/Rakefile
index a55a5f0..9f10af8 100644
--- a/Rakefile
+++ b/Rakefile
@@ -33,4 +33,3 @@ end
 
 YARD::Rake::YardocTask.new do |t|
 end
-
diff --git a/lib/factory_bot/attribute.rb b/lib/factory_bot/attribute.rb
index f878679..6cf0754 100644
--- a/lib/factory_bot/attribute.rb
+++ b/lib/factory_bot/attribute.rb
@@ -14,7 +14,7 @@ module FactoryBot
     end
 
     def to_proc
-      -> { }
+      -> {}
     end
 
     def association?
diff --git a/lib/factory_bot/callback.rb b/lib/factory_bot/callback.rb
index fce422c..80c9dcb 100644
--- a/lib/factory_bot/callback.rb
+++ b/lib/factory_bot/callback.rb
@@ -22,6 +22,7 @@ module FactoryBot
     end
 
     protected
+
     attr_reader :block
 
     private
diff --git a/lib/factory_bot/declaration.rb b/lib/factory_bot/declaration.rb
index 1e05ce7..bd39558 100644
--- a/lib/factory_bot/declaration.rb
+++ b/lib/factory_bot/declaration.rb
@@ -17,6 +17,7 @@ module FactoryBot
     end
 
     protected
+
     attr_reader :ignored
   end
 end
diff --git a/lib/factory_bot/declaration/association.rb b/lib/factory_bot/declaration/association.rb
index cbe4d2f..4407a73 100644
--- a/lib/factory_bot/declaration/association.rb
+++ b/lib/factory_bot/declaration/association.rb
@@ -15,6 +15,7 @@ module FactoryBot
       end
 
       protected
+
       attr_reader :options
 
       private
diff --git a/lib/factory_bot/declaration/dynamic.rb b/lib/factory_bot/declaration/dynamic.rb
index ec05dfb..3446a9e 100644
--- a/lib/factory_bot/declaration/dynamic.rb
+++ b/lib/factory_bot/declaration/dynamic.rb
@@ -14,6 +14,7 @@ module FactoryBot
       end
 
       protected
+
       attr_reader :block
 
       private
diff --git a/lib/factory_bot/declaration/implicit.rb b/lib/factory_bot/declaration/implicit.rb
index e08532c..a69b7e5 100644
--- a/lib/factory_bot/declaration/implicit.rb
+++ b/lib/factory_bot/declaration/implicit.rb
@@ -14,6 +14,7 @@ module FactoryBot
       end
 
       protected
+
       attr_reader :factory
 
       private
diff --git a/lib/factory_bot/definition.rb b/lib/factory_bot/definition.rb
index b303f26..4f05cf1 100644
--- a/lib/factory_bot/definition.rb
+++ b/lib/factory_bot/definition.rb
@@ -74,7 +74,7 @@ module FactoryBot
     end
 
     def skip_create
-      @to_create = ->(instance) { }
+      @to_create = ->(instance) {}
     end
 
     def define_trait(trait)
diff --git a/lib/factory_bot/factory.rb b/lib/factory_bot/factory.rb
index 7aa05ad..71b6c40 100644
--- a/lib/factory_bot/factory.rb
+++ b/lib/factory_bot/factory.rb
@@ -21,10 +21,10 @@ module FactoryBot
 
     def build_class
       @build_class ||= if class_name.is_a? Class
-        class_name
-      else
-        class_name.to_s.camelize.constantize
-      end
+                         class_name
+                       else
+                         class_name.to_s.camelize.constantize
+                       end
     end
 
     def run(build_strategy, overrides, &block)
diff --git a/lib/factory_bot/linter.rb b/lib/factory_bot/linter.rb
index ecde3d8..a83118f 100644
--- a/lib/factory_bot/linter.rb
+++ b/lib/factory_bot/linter.rb
@@ -1,6 +1,5 @@
 module FactoryBot
   class Linter
-
     def initialize(factories, linting_strategy, factory_strategy = :create)
       @factories_to_lint = factories
       @linting_method = "lint_#{linting_strategy}"
@@ -70,7 +69,7 @@ module FactoryBot
           FactoryBot.public_send(factory_strategy, factory.name, trait_name)
         rescue => error
           result |=
-              [FactoryTraitError.new(error, factory, trait_name)]
+            [FactoryTraitError.new(error, factory, trait_name)]
         end
       end
       result
diff --git a/lib/factory_bot/null_factory.rb b/lib/factory_bot/null_factory.rb
index bc9720d..e22bab0 100644
--- a/lib/factory_bot/null_factory.rb
+++ b/lib/factory_bot/null_factory.rb
@@ -11,8 +11,11 @@ module FactoryBot
       :to_create, to: :definition
 
     def compile; end
+
     def class_name; end
+
     def evaluator_class; FactoryBot::Evaluator; end
+
     def hierarchy_class; FactoryBot::DefinitionHierarchy; end
   end
 end
diff --git a/lib/factory_bot/null_object.rb b/lib/factory_bot/null_object.rb
index c576b7f..91dd961 100644
--- a/lib/factory_bot/null_object.rb
+++ b/lib/factory_bot/null_object.rb
@@ -13,7 +13,7 @@ module FactoryBot
       end
     end
 
-    def respond_to?(method, include_private=false)
+    def respond_to?(method, include_private = false)
       @methods_to_respond_to.include? method.to_s
     end
 
diff --git a/lib/factory_bot/sequence.rb b/lib/factory_bot/sequence.rb
index 26a39d9..31648a4 100644
--- a/lib/factory_bot/sequence.rb
+++ b/lib/factory_bot/sequence.rb
@@ -1,5 +1,4 @@
 module FactoryBot
-
   # Sequences are defined using sequence within a FactoryBot.define block.
   # Sequence values are generated using next.
   # @api private
diff --git a/lib/factory_bot/trait.rb b/lib/factory_bot/trait.rb
index 84bc323..f71e5ac 100644
--- a/lib/factory_bot/trait.rb
+++ b/lib/factory_bot/trait.rb
@@ -25,6 +25,7 @@ module FactoryBot
     end
 
     protected
+
     attr_reader :block
   end
 end
diff --git a/spec/acceptance/activesupport_instrumentation_spec.rb b/spec/acceptance/activesupport_instrumentation_spec.rb
index 8290898..f592c14 100644
--- a/spec/acceptance/activesupport_instrumentation_spec.rb
+++ b/spec/acceptance/activesupport_instrumentation_spec.rb
@@ -24,7 +24,6 @@ describe "using ActiveSupport::Instrumentation to track factory interaction" do
           after(:build) { Kernel.sleep(0.1) }
         end
       end
-
     end
   end
 
diff --git a/spec/acceptance/attribute_existing_on_object_spec.rb b/spec/acceptance/attribute_existing_on_object_spec.rb
index 9cf92f5..1ea429b 100644
--- a/spec/acceptance/attribute_existing_on_object_spec.rb
+++ b/spec/acceptance/attribute_existing_on_object_spec.rb
@@ -20,10 +20,11 @@ end
 
 describe "assigning overrides that are also private methods on object" do
   before do
-    define_model("Website",  format: :string, y: :integer, more_format: :string, some_funky_method: :string)
+    define_model("Website", format: :string, y: :integer, more_format: :string, some_funky_method: :string)
 
     Object.class_eval do
       private
+
       def some_funky_method(args)
       end
     end
diff --git a/spec/acceptance/parent_spec.rb b/spec/acceptance/parent_spec.rb
index 9e79211..1512cc0 100644
--- a/spec/acceptance/parent_spec.rb
+++ b/spec/acceptance/parent_spec.rb
@@ -23,7 +23,7 @@ describe "an instance generated by a factory that inherits from another factory"
         end
 
         factory :bill do
-          name  { "Bill" }  #block to make  attribute dynamic
+          name  { "Bill" } # block to make  attribute dynamic
         end
       end
     end
@@ -41,7 +41,7 @@ describe "an instance generated by a factory that inherits from another factory"
     it                { should be_admin }
     its(:name)        { should eq "admin" }
     its(:email)       { should eq "admin@example.com" }
-    its(:upper_email) { should eq "ADMIN@EXAMPLE.COM"}
+    its(:upper_email) { should eq "ADMIN@EXAMPLE.COM" }
   end
 
   describe "the child class redefining parent's dynamic method" do
diff --git a/spec/acceptance/private_attributes_spec.rb b/spec/acceptance/private_attributes_spec.rb
index eb121bb..f704b0a 100644
--- a/spec/acceptance/private_attributes_spec.rb
+++ b/spec/acceptance/private_attributes_spec.rb
@@ -2,6 +2,7 @@ describe 'setting private attributes' do
   it 'raises a NoMethodError' do
     define_class('User') do
       private
+
       attr_accessor :foo
     end
 
diff --git a/spec/acceptance/traits_spec.rb b/spec/acceptance/traits_spec.rb
index 8adec52..b538200 100644
--- a/spec/acceptance/traits_spec.rb
+++ b/spec/acceptance/traits_spec.rb
@@ -141,7 +141,7 @@ describe "an instance generated by a factory with multiple traits" do
   context "factory using global trait" do
     subject     { FactoryBot.create(:user_with_email) }
     its(:name)  { should eq "Bill" }
-    its(:email) { should eq "Bill@example.com"}
+    its(:email) { should eq "Bill@example.com" }
   end
 
   context "factory created with alternate syntax for specifying trait" do
@@ -333,7 +333,7 @@ describe "applying inline traits" do
     FactoryBot.define do
       factory :user do
         trait :with_post do
-          posts { [ Post.new ] }
+          posts { [Post.new] }
         end
       end
     end
diff --git a/spec/acceptance/transient_attributes_spec.rb b/spec/acceptance/transient_attributes_spec.rb
index a9729c3..9bbdde3 100644
--- a/spec/acceptance/transient_attributes_spec.rb
+++ b/spec/acceptance/transient_attributes_spec.rb
@@ -105,7 +105,7 @@ describe "assigning values from a transient attribute" do
     FactoryBot.define do
       factory :user do
         transient do
-          foo { Foo.new('id-of-foo', 'name-of-foo')}
+          foo { Foo.new('id-of-foo', 'name-of-foo') }
         end
 
         foo_id   { foo.id }
diff --git a/spec/factory_bot/attribute/dynamic_spec.rb b/spec/factory_bot/attribute/dynamic_spec.rb
index 9512a50..bfc9527 100644
--- a/spec/factory_bot/attribute/dynamic_spec.rb
+++ b/spec/factory_bot/attribute/dynamic_spec.rb
@@ -1,6 +1,6 @@
 describe FactoryBot::Attribute::Dynamic do
   let(:name)  { :first_name }
-  let(:block) { -> { } }
+  let(:block) { -> {} }
 
   subject { FactoryBot::Attribute::Dynamic.new(name, false, block) }
 
@@ -54,6 +54,6 @@ describe FactoryBot::Attribute::Dynamic do
 end
 
 describe FactoryBot::Attribute::Dynamic, "with a string name" do
-  subject    { FactoryBot::Attribute::Dynamic.new("name", false, -> { } ) }
+  subject    { FactoryBot::Attribute::Dynamic.new("name", false, -> {}) }
   its(:name) { should eq :name }
 end
diff --git a/spec/factory_bot/definition_proxy_spec.rb b/spec/factory_bot/definition_proxy_spec.rb
index d3dd5af..52e0ca2 100644
--- a/spec/factory_bot/definition_proxy_spec.rb
+++ b/spec/factory_bot/definition_proxy_spec.rb
@@ -63,7 +63,6 @@ describe FactoryBot::DefinitionProxy, "#method_missing" do
 end
 
 describe FactoryBot::DefinitionProxy, "#sequence" do
-
   before do
     allow(FactoryBot::Sequence).to receive(:new).and_call_original
   end
@@ -179,7 +178,7 @@ describe FactoryBot::DefinitionProxy, "#factory" do
   end
 
   it "with a block" do
-    child_block = -> { }
+    child_block = -> {}
     proxy.factory(:child, {}, &child_block)
     expect(proxy.child_factories).to include([:child, {}, child_block])
   end