diff --git a/.github/workflows/danger.yml b/.github/workflows/danger.yml
new file mode 100644
index 0000000..04125d2
--- /dev/null
+++ b/.github/workflows/danger.yml
@@ -0,0 +1,21 @@
+name: danger
+on: pull_request
+
+jobs:
+  danger:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 100
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+          rubygems: latest
+      - name: Run Danger
+        run: |
+          # the token is public, has public_repo scope and belongs to the grape-bot user owned by @dblock, this is ok
+          TOKEN=$(echo -n Z2hwX2lYb0dPNXNyejYzOFJyaTV3QUxUdkNiS1dtblFwZTFuRXpmMwo= | base64 --decode)
+          DANGER_GITHUB_API_TOKEN=$TOKEN bundle exec danger --verbose
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..6decc1b
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,43 @@
+name: test
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: RuboCop
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+          rubygems: latest
+
+      - name: Run RuboCop
+        run: bundle exec rubocop
+
+  test:
+    env:
+      GRAPE_ENTITY: 0.8.0
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-version: ['3.0', '3.1', '3.2']
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true
+    - name: Run tests
+      run: bundle exec rake spec
diff --git a/.gitignore b/.gitignore
index 31d3238..53a1834 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,5 @@
 /spec/reports/
 /tmp/
 .ruby-gemset
-.ruby-version
\ No newline at end of file
+.ruby-version
+/.idea
diff --git a/.rubocop.yml b/.rubocop.yml
index a591d19..709b6f7 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,4 +1,5 @@
 AllCops:
+  NewCops: enable
   Exclude:
     - vendor/**/*
   TargetRubyVersion:
@@ -6,18 +7,6 @@ AllCops:
 
 inherit_from: .rubocop_todo.yml
 
-Metrics/BlockLength:
-  Exclude:
-    - spec/**/*
-
-Metrics/LineLength:
-  Exclude:
-    - spec/**/*
-
-Metrics/MethodLength:
-  Exclude:
-    - spec/**/*
-
 Naming/FileName:
   Enabled: false
 
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index ebc16b8..4775e3a 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,44 +1,96 @@
 # This configuration was generated by
-# `rubocop --auto-gen-config`
-# on 2020-06-29 22:12:50 UTC using RuboCop version 0.86.0.
+# `rubocop --auto-gen-config --auto-gen-only-exclude --exclude-limit 5000`
+# on 2023-07-06 17:02:48 UTC using RuboCop version 1.42.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
 # Offense count: 1
-# Configuration parameters: Include.
+# Configuration parameters: Severity, Include.
 # Include: **/*.gemspec
 Gemspec/RequiredRubyVersion:
   Exclude:
     - 'grape-swagger-entity.gemspec'
 
+# Offense count: 3
+# Configuration parameters: AllowedMethods.
+# AllowedMethods: enums
+Lint/ConstantDefinitionInBlock:
+  Exclude:
+    - 'spec/grape-swagger/entities/response_model_spec.rb'
+    - 'spec/support/shared_contexts/inheritance_api.rb'
+    - 'spec/support/shared_contexts/this_api.rb'
+
+# Offense count: 1
+# Configuration parameters: AllowComments, AllowEmptyLambdas.
+Lint/EmptyBlock:
+  Exclude:
+    - 'spec/grape-swagger/entity/attribute_parser_spec.rb'
+
+# Offense count: 1
+# This cop supports unsafe autocorrection (--autocorrect-all).
+# Configuration parameters: AllowedMethods.
+# AllowedMethods: instance_of?, kind_of?, is_a?, eql?, respond_to?, equal?
+Lint/RedundantSafeNavigation:
+  Exclude:
+    - 'lib/grape-swagger/entity/attribute_parser.rb'
+
 # Offense count: 4
-# Configuration parameters: IgnoredMethods.
+# Configuration parameters: AllowedMethods, AllowedPatterns, IgnoredMethods, CountRepeatedAttributes, Max.
 Metrics/AbcSize:
-  Max: 30
+  Exclude:
+    - 'lib/grape-swagger/entity/attribute_parser.rb'
+    - 'lib/grape-swagger/entity/parser.rb'
+
+# Offense count: 13
+# Configuration parameters: CountComments, Max, CountAsOne, ExcludedMethods, AllowedMethods, AllowedPatterns, IgnoredMethods.
+# AllowedMethods: refine
+Metrics/BlockLength:
+  Exclude:
+    - '**/*.gemspec'
+    - 'spec/grape-swagger/entities/response_model_spec.rb'
+    - 'spec/grape-swagger/entity/attribute_parser_spec.rb'
+    - 'spec/grape-swagger/entity/parser_spec.rb'
+    - 'spec/support/shared_contexts/this_api.rb'
 
 # Offense count: 1
-# Configuration parameters: CountComments.
+# Configuration parameters: CountComments, Max, CountAsOne.
 Metrics/ClassLength:
-  Max: 111
+  Exclude:
+    - 'lib/grape-swagger/entity/parser.rb'
 
 # Offense count: 2
-# Configuration parameters: IgnoredMethods.
+# Configuration parameters: AllowedMethods, AllowedPatterns, IgnoredMethods, Max.
 Metrics/CyclomaticComplexity:
-  Max: 11
+  Exclude:
+    - 'lib/grape-swagger/entity/attribute_parser.rb'
+    - 'lib/grape-swagger/entity/parser.rb'
 
 # Offense count: 5
-# Configuration parameters: CountComments, ExcludedMethods.
+# Configuration parameters: CountComments, Max, CountAsOne, ExcludedMethods, AllowedMethods, AllowedPatterns, IgnoredMethods.
 Metrics/MethodLength:
-  Max: 25
+  Exclude:
+    - 'lib/grape-swagger/entity/attribute_parser.rb'
+    - 'lib/grape-swagger/entity/parser.rb'
 
 # Offense count: 2
-# Configuration parameters: IgnoredMethods.
+# Configuration parameters: AllowedMethods, AllowedPatterns, IgnoredMethods, Max.
 Metrics/PerceivedComplexity:
-  Max: 12
+  Exclude:
+    - 'lib/grape-swagger/entity/attribute_parser.rb'
+    - 'lib/grape-swagger/entity/parser.rb'
+
+# Offense count: 2
+# Configuration parameters: EnforcedStyle, CheckMethodNames, CheckSymbols, AllowedIdentifiers, AllowedPatterns.
+# SupportedStyles: snake_case, normalcase, non_integer
+# AllowedIdentifiers: capture3, iso8601, rfc1123_date, rfc822, rfc2822, rfc3339
+Naming/VariableNumber:
+  Exclude:
+    - 'spec/grape-swagger/entities/response_model_spec.rb'
 
 # Offense count: 4
+# Configuration parameters: AllowedConstants.
 Style/Documentation:
   Exclude:
     - 'spec/**/*'
@@ -46,3 +98,9 @@ Style/Documentation:
     - 'lib/grape-swagger/entity.rb'
     - 'lib/grape-swagger/entity/attribute_parser.rb'
     - 'lib/grape-swagger/entity/parser.rb'
+
+# Offense count: 4
+Style/OpenStructUse:
+  Exclude:
+    - 'spec/grape-swagger/entities/response_model_spec.rb'
+    - 'spec/support/shared_contexts/this_api.rb'
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 96906a7..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-language: ruby
-
-sudo: false
-
-before_install:
-  - gem update --system
-  - gem install bundler
-
-after_success:
-  - bundle exec danger
-
-rvm:
-  - 2.5.8
-  - 2.6.6
-  - 2.7.1
-
-env:
-  - GRAPE_ENTITY=0.6.1
-  - GRAPE_ENTITY=0.7.1
-  - GRAPE_ENTITY=0.8.0
-
-matrix:
-  fast_finish: true
-
-  include:
-    - rvm: 2.4.10
-      env:
-    - rvm: ruby-head
-      env:
-    - rvm: jruby-head
-      env:
-
-  allow_failures:
-    - rvm: 2.4.10
-    - rvm: ruby-head
-    - rvm: jruby-head
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d4ab94..9535bfa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 #### Fixes
 
+* [#61](https://github.com/ruby-grape/grape-swagger-entity/pull/61): Migrate from Travis to GHA for CI - [@mscrivo](https://github.com/mscrivo).
 * Your contribution here.
 
 ### 0.5.1 (June 30, 2020)
diff --git a/Gemfile b/Gemfile
index 7101d1e..9eb4c22 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,14 +14,14 @@ group :development, :test do
   gem 'rack-test'
   gem 'rake'
   gem 'rdoc'
-  gem 'rspec', '~> 3.9'
-  gem 'rubocop', '~> 0.85'
+  gem 'rspec'
+  gem 'rubocop'
 end
 
 gem 'grape-swagger', git: 'https://github.com/ruby-grape/grape-swagger.git'
 
 group :test do
   gem 'grape-entity', ENV.fetch('GRAPE_ENTITY', '0.6.1')
-  gem 'ruby-grape-danger', '~> 0.1.1', require: false
+  gem 'ruby-grape-danger', '~> 0.2.0', require: false
   gem 'simplecov', require: false
 end
diff --git a/README.md b/README.md
index d7c5639..bd141d0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
-# GrapeSwagger::Entity [![Build Status](https://travis-ci.org/ruby-grape/grape-swagger-entity.svg)](https://travis-ci.org/ruby-grape/grape-swagger-entity)
+# GrapeSwagger::Entity
+
+[![Gem Version](https://badge.fury.io/rb/grape-swagger-entity.svg)](https://badge.fury.io/rb/grape-swagger-entity)
+[![Build Status](https://github.com/ruby-grape/grape-swagger-entity/workflows/test/badge.svg?branch=master)](https://github.com/ruby-grape/grape-swagger-entity/actions)
 
 A simple grape-swagger adapter to allow parse representers as response model
 
diff --git a/grape-swagger-entity.gemspec b/grape-swagger-entity.gemspec
index 46ed2cd..0c88a08 100644
--- a/grape-swagger-entity.gemspec
+++ b/grape-swagger-entity.gemspec
@@ -22,4 +22,5 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 2.4'
   s.add_runtime_dependency 'grape-entity', '>= 0.6.0'
   s.add_runtime_dependency 'grape-swagger', '>= 1.2.0'
+  s.metadata['rubygems_mfa_required'] = 'true'
 end
diff --git a/lib/grape-swagger/entity.rb b/lib/grape-swagger/entity.rb
index 9133ce3..af622ea 100644
--- a/lib/grape-swagger/entity.rb
+++ b/lib/grape-swagger/entity.rb
@@ -13,4 +13,4 @@ module Entity
   end
 end
 
-GrapeSwagger.model_parsers.register(::GrapeSwagger::Entity::Parser, ::Grape::Entity)
+GrapeSwagger.model_parsers.register(GrapeSwagger::Entity::Parser, Grape::Entity)
diff --git a/lib/grape-swagger/entity/attribute_parser.rb b/lib/grape-swagger/entity/attribute_parser.rb
index e643caf..8c4ca87 100644
--- a/lib/grape-swagger/entity/attribute_parser.rb
+++ b/lib/grape-swagger/entity/attribute_parser.rb
@@ -29,8 +29,8 @@ def call(entity_options)
           add_attribute_sample(param, documentation, :default)
           add_attribute_sample(param, documentation, :example)
 
-          if (values = documentation[:values])
-            param[:enum] = values if values.is_a?(Array)
+          if (values = documentation[:values]) && values.is_a?(Array)
+            param[:enum] = values
           end
 
           if documentation[:is_array]
diff --git a/lib/grape-swagger/entity/parser.rb b/lib/grape-swagger/entity/parser.rb
index 17fa987..f80e12a 100644
--- a/lib/grape-swagger/entity/parser.rb
+++ b/lib/grape-swagger/entity/parser.rb
@@ -3,9 +3,7 @@
 module GrapeSwagger
   module Entity
     class Parser
-      attr_reader :model
-      attr_reader :endpoint
-      attr_reader :attribute_parser
+      attr_reader :model, :endpoint, :attribute_parser
 
       def initialize(model, endpoint)
         @model = model
diff --git a/spec/grape-swagger/entities/response_model_spec.rb b/spec/grape-swagger/entities/response_model_spec.rb
index 355f91b..6ad4b34 100644
--- a/spec/grape-swagger/entities/response_model_spec.rb
+++ b/spec/grape-swagger/entities/response_model_spec.rb
@@ -40,7 +40,7 @@ def app
     expect(subject['definitions'].keys).to include 'ThisApi_Entities_Error'
     expect(subject['definitions']['ThisApi_Entities_Error']).to eq(
       'type' => 'object',
-      'description' => 'This returns something or an error',
+      'description' => 'ThisApi_Entities_Error model',
       'properties' => {
         'code' => { 'type' => 'string', 'description' => 'Error code' },
         'message' => { 'type' => 'string', 'description' => 'Error message' }
@@ -50,14 +50,16 @@ def app
     expect(subject['definitions'].keys).to include 'ThisApi_Entities_Something'
     expect(subject['definitions']['ThisApi_Entities_Something']).to eq(
       'type' => 'object',
-      'description' => 'This returns something',
+      'description' => 'ThisApi_Entities_Something model',
       'properties' =>
           { 'text' => { 'type' => 'string', 'description' => 'Content of something.' },
             'colors' => { 'type' => 'array', 'items' => { 'type' => 'string' }, 'description' => 'Colors' },
-            'kind' => { '$ref' => '#/definitions/ThisApi_Entities_Kind', 'description' => 'The kind of this something.' },
+            'kind' => { '$ref' => '#/definitions/ThisApi_Entities_Kind',
+                        'description' => 'The kind of this something.' },
             'kind2' => { '$ref' => '#/definitions/ThisApi_Entities_Kind', 'description' => 'Secondary kind.' },
             'kind3' => { '$ref' => '#/definitions/ThisApi_Entities_Kind', 'description' => 'Tertiary kind.' },
-            'tags' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/ThisApi_Entities_Tag' }, 'description' => 'Tags.' },
+            'tags' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/ThisApi_Entities_Tag' },
+                        'description' => 'Tags.' },
             'relation' => { '$ref' => '#/definitions/ThisApi_Entities_Relation', 'description' => 'A related model.' },
             'code' => { 'type' => 'string', 'description' => 'Error code' },
             'message' => { 'type' => 'string', 'description' => 'Error message' },
@@ -67,7 +69,9 @@ def app
 
     expect(subject['definitions'].keys).to include 'ThisApi_Entities_Kind'
     expect(subject['definitions']['ThisApi_Entities_Kind']).to eq(
-      'type' => 'object', 'properties' => { 'title' => { 'type' => 'string', 'description' => 'Title of the kind.' }, 'content' => { 'description' => 'Content', 'type' => 'string', 'x-some' => 'stuff' } }
+      'type' => 'object', 'properties' => { 'title' => { 'type' => 'string', 'description' => 'Title of the kind.' },
+                                            'content' => { 'description' => 'Content', 'type' => 'string',
+                                                           'x-some' => 'stuff' } }
     )
 
     expect(subject['definitions'].keys).to include 'ThisApi_Entities_Relation'
@@ -101,6 +105,7 @@ class Kind < Grape::Entity
         class Relation < Grape::Entity
           expose :name, documentation: { type: String, desc: 'Name' }
         end
+
         class Tag < Grape::Entity
           expose :name, documentation: { type: 'string', desc: 'Name',
                                          example: -> { 'random_tag' } }
@@ -132,10 +137,18 @@ class Nested < Grape::Entity
         end
 
         class Polymorphic < Grape::Entity
-          expose :obj, as: :kind, if: ->(instance, _) { instance.type == 'kind' }, using: Kind, documentation: { desc: 'Polymorphic Kind' }
-          expose :obj, as: :values, if: ->(instance, _) { instance.type == 'values' }, using: Values, documentation: { desc: 'Polymorphic Values' }
-          expose :not_using_obj, as: :str, if: ->(instance, _) { instance.instance_of?(String) }, documentation: { desc: 'Polymorphic String' }
-          expose :not_using_obj, as: :num, if: ->(instance, _) { instance.instance_of?(Number) }, documentation: { desc: 'Polymorphic Number', type: 'Integer' }
+          expose :obj, as: :kind, if: lambda { |instance, _|
+                                        instance.type == 'kind'
+                                      }, using: Kind, documentation: { desc: 'Polymorphic Kind' }
+          expose :obj, as: :values, if: lambda { |instance, _|
+                                          instance.type == 'values'
+                                        }, using: Values, documentation: { desc: 'Polymorphic Values' }
+          expose :not_using_obj, as: :str, if: lambda { |instance, _|
+                                                 instance.instance_of?(String)
+                                               }, documentation: { desc: 'Polymorphic String' }
+          expose :not_using_obj, as: :num, if: lambda { |instance, _|
+                                                 instance.instance_of?(Number)
+                                               }, documentation: { desc: 'Polymorphic Number', type: 'Integer' }
         end
 
         class SomeEntity < Grape::Entity
@@ -144,7 +157,8 @@ class SomeEntity < Grape::Entity
           expose :kind2, using: Kind, documentation: { desc: 'Secondary kind.' }
           expose :kind3, using: TheseApi::Entities::Kind, documentation: { desc: 'Tertiary kind.' }
           expose :tags, using: TheseApi::Entities::Tag, documentation: { desc: 'Tags.', is_array: true }
-          expose :relation, using: TheseApi::Entities::Relation, documentation: { type: 'TheseApi_Relation', desc: 'A related model.' }
+          expose :relation, using: TheseApi::Entities::Relation,
+                            documentation: { type: 'TheseApi_Relation', desc: 'A related model.' }
           expose :values, using: TheseApi::Entities::Values, documentation: { desc: 'Tertiary kind.' }
           expose :nested, using: TheseApi::Entities::Nested, documentation: { desc: 'Nested object.' }
           expose :polymorphic, using: TheseApi::Entities::Polymorphic, documentation: { desc: 'Polymorphic Model' }
@@ -181,19 +195,22 @@ def app
       'type' => 'object',
       'properties' => {
         'guid' => { 'type' => 'string', 'enum' => %w[a b c], 'default' => 'c', 'description' => 'Some values' },
-        'uuid' => { 'type' => 'string', 'format' => 'own', 'description' => 'customer uuid', 'example' => 'e3008fba-d53d-4bcc-a6ae-adc56dff8020' }
+        'uuid' => { 'type' => 'string', 'format' => 'own', 'description' => 'customer uuid',
+                    'example' => 'e3008fba-d53d-4bcc-a6ae-adc56dff8020' }
       }
     )
     expect(subject['TheseApi_Entities_Kind']).to eql(
       'type' => 'object',
       'properties' => {
-        'id' => { 'type' => 'integer', 'format' => 'int32', 'description' => 'id of the kind.', 'enum' => [1, 2], 'readOnly' => true },
+        'id' => { 'type' => 'integer', 'format' => 'int32', 'description' => 'id of the kind.', 'enum' => [1, 2],
+                  'readOnly' => true },
         'title' => { 'type' => 'string', 'description' => 'Title of the kind.', 'readOnly' => false },
         'type' => { 'type' => 'string', 'description' => 'Type of the kind.', 'readOnly' => true }
       }
     )
     expect(subject['TheseApi_Entities_Tag']).to eql(
-      'type' => 'object', 'properties' => { 'name' => { 'type' => 'string', 'description' => 'Name', 'example' => 'random_tag' } }
+      'type' => 'object', 'properties' => { 'name' => { 'type' => 'string', 'description' => 'Name',
+                                                        'example' => 'random_tag' } }
     )
     expect(subject['TheseApi_Entities_Relation']).to eql(
       'type' => 'object', 'properties' => { 'name' => { 'type' => 'string', 'description' => 'Name' } }
@@ -267,17 +284,19 @@ def app
         'kind' => { '$ref' => '#/definitions/TheseApi_Entities_Kind', 'description' => 'The kind of this something.' },
         'kind2' => { '$ref' => '#/definitions/TheseApi_Entities_Kind', 'description' => 'Secondary kind.' },
         'kind3' => { '$ref' => '#/definitions/TheseApi_Entities_Kind', 'description' => 'Tertiary kind.' },
-        'tags' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/TheseApi_Entities_Tag' }, 'description' => 'Tags.' },
+        'tags' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/TheseApi_Entities_Tag' },
+                    'description' => 'Tags.' },
         'relation' => { '$ref' => '#/definitions/TheseApi_Entities_Relation', 'description' => 'A related model.' },
         'values' => { '$ref' => '#/definitions/TheseApi_Entities_Values', 'description' => 'Tertiary kind.' },
         'nested' => { '$ref' => '#/definitions/TheseApi_Entities_Nested', 'description' => 'Nested object.' },
         'code' => { 'type' => 'string', 'description' => 'Error code' },
         'message' => { 'type' => 'string', 'description' => 'Error message' },
-        'polymorphic' => { '$ref' => '#/definitions/TheseApi_Entities_Polymorphic', 'description' => 'Polymorphic Model' },
+        'polymorphic' => { '$ref' => '#/definitions/TheseApi_Entities_Polymorphic',
+                           'description' => 'Polymorphic Model' },
         'attr' => { 'type' => 'string', 'description' => 'Attribute' }
       },
       'required' => %w[attr],
-      'description' => 'This returns something'
+      'description' => 'TheseApi_Entities_SomeEntity model'
     )
   end
 end
diff --git a/spec/grape-swagger/entity/attribute_parser_spec.rb b/spec/grape-swagger/entity/attribute_parser_spec.rb
index fd63e3c..4fe8865 100644
--- a/spec/grape-swagger/entity/attribute_parser_spec.rb
+++ b/spec/grape-swagger/entity/attribute_parser_spec.rb
@@ -31,14 +31,19 @@
         end
 
         context 'when it contains unique_items' do
-          let(:entity_options) { { using: ThisApi::Entities::Tag, documentation: { is_array: true, unique_items: true } } }
+          let(:entity_options) do
+            { using: ThisApi::Entities::Tag, documentation: { is_array: true, unique_items: true } }
+          end
 
           it { is_expected.to include(uniqueItems: true) }
         end
       end
 
       context 'when it is not exposed as an array' do
-        let(:entity_options) { { using: ThisApi::Entities::Kind, documentation: { type: 'ThisApi::Kind', desc: 'The kind of this something.' } } }
+        let(:entity_options) do
+          { using: ThisApi::Entities::Kind,
+            documentation: { type: 'ThisApi::Kind', desc: 'The kind of this something.' } }
+        end
 
         it { is_expected.to_not include('type') }
         it { is_expected.to include('$ref' => '#/definitions/Kind') }
@@ -89,7 +94,9 @@
         end
 
         context 'when it contains unique_items' do
-          let(:entity_options) { { documentation: { type: 'string', desc: 'Colors', is_array: true, unique_items: true } } }
+          let(:entity_options) do
+            { documentation: { type: 'string', desc: 'Colors', is_array: true, unique_items: true } }
+          end
 
           it { is_expected.to include(uniqueItems: true) }
         end
diff --git a/spec/support/shared_contexts/this_api.rb b/spec/support/shared_contexts/this_api.rb
index 57af4e1..0ca3142 100644
--- a/spec/support/shared_contexts/this_api.rb
+++ b/spec/support/shared_contexts/this_api.rb
@@ -12,9 +12,11 @@ class Kind < Grape::Entity
         class Relation < Grape::Entity
           expose :name, documentation: { type: 'string', desc: 'Name' }
         end
+
         class Tag < Grape::Entity
           expose :name, documentation: { type: 'string', desc: 'Name' }
         end
+
         class Error < Grape::Entity
           expose :code, documentation: { type: 'string', desc: 'Error code' }
           expose :message, documentation: { type: 'string', desc: 'Error message' }
@@ -33,7 +35,8 @@ class Something < Grape::Entity
           expose :kind2, using: Kind, documentation: { desc: 'Secondary kind.' }
           expose :kind3, using: ThisApi::Entities::Kind, documentation: { desc: 'Tertiary kind.' }
           expose :tags, using: ThisApi::Entities::Tag, documentation: { desc: 'Tags.', is_array: true }
-          expose :relation, using: ThisApi::Entities::Relation, documentation: { type: 'ThisApi::Relation', desc: 'A related model.' }
+          expose :relation, using: ThisApi::Entities::Relation,
+                            documentation: { type: 'ThisApi::Relation', desc: 'A related model.' }
           expose :merged_attribute, using: ThisApi::Entities::Nested, merge: true
         end
       end