diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1ad57d96..8cda30b2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
   rubocop:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: '3.2'
@@ -23,17 +23,17 @@ jobs:
       - name: Run rubocop
         run: bundle exec rubocop --parallel --format progress
 
-  grape-16:
+  grape-17:
     runs-on: ubuntu-latest
     needs: ['rubocop']
     env:
-      GRAPE_VERSION: '1.6.2'
+      GRAPE_VERSION: '1.7.1'
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', 'head']
+        ruby-version: ['3.1', '3.2', 'head']
     steps:
     - name: Check out branch
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
@@ -55,17 +55,17 @@ jobs:
         bundle update
         bundle exec rspec
 
-  grape-17:
+  grape-18:
     runs-on: ubuntu-latest
     needs: ['rubocop']
     env:
-      GRAPE_VERSION: '1.7.1'
+      GRAPE_VERSION: '1.8.0'
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', 'head']
+        ruby-version: ['3.1', '3.2', 'head']
     steps:
     - name: Check out branch
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
@@ -94,10 +94,10 @@ jobs:
       GRAPE_VERSION: 'HEAD'
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', 'head']
+        ruby-version: ['3.1', '3.2', 'head']
     steps:
     - name: Check out branch
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
diff --git a/.rubocop.yml b/.rubocop.yml
index 1893914e..7b2bf145 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,6 +4,7 @@ AllCops:
   Exclude:
     - vendor/**/*
     - example/**/*
+  UseCache: true
   NewCops: enable
   TargetRubyVersion: 3.2
   SuggestExtensions: false
@@ -24,30 +25,12 @@ Layout/LineLength:
   Exclude:
     - spec/**/*
 
-Layout/SpaceAroundMethodCallOperator:
-  Enabled: true
-
 # Lint stuff
 #
 Lint/ConstantDefinitionInBlock:
   Exclude:
     - spec/**/*
 
-Lint/DeprecatedOpenSSLConstant:
-  Enabled: true
-
-Lint/DuplicateElsifCondition:
-  Enabled: true
-
-Lint/MixedRegexpCaptureTypes:
-  Enabled: true
-
-Lint/RaiseException:
-  Enabled: true
-
-Lint/StructNewOverride:
-  Enabled: true
-
 # Metrics stuff
 #
 Metrics/BlockLength:
@@ -71,66 +54,24 @@ Naming:
 
 # Style stuff
 #
-Style/AccessorGrouping:
-  Enabled: true
-
 Style/AsciiComments:
   Enabled: false
 
-Style/ArrayCoercion:
-  Enabled: true
-
-Style/BisectedAttrAccessor:
-  Enabled: true
-
-Style/CaseLikeIf:
-  Enabled: true
-
-Style/ExponentialNotation:
-  Enabled: true
-
 Style/ExplicitBlockArgument:
   Enabled: false
 
-Style/HashAsLastArrayItem:
-  Enabled: true
-
-Style/HashEachMethods:
-  Enabled: true
-
-Style/HashLikeCase:
-  Enabled: true
-
 Style/HashSyntax:
   Enabled: false
 
-Style/HashTransformKeys:
-  Enabled: true
-
-Style/HashTransformValues:
-  Enabled: true
-
 Style/OpenStructUse:
   Exclude:
     - spec/**/*
 
-Style/RegexpLiteral:
+Style/RedundantArrayConstructor:
   Enabled: false
 
-Style/RedundantAssignment:
-  Enabled: true
-
-Style/RedundantFetchBlock:
-  Enabled: true
-
-Style/RedundantFileExtensionInRequire:
-  Enabled: true
-
-Style/RedundantRegexpCharacterClass:
-  Enabled: true
-
-Style/RedundantRegexpEscape:
-  Enabled: true
+Style/RegexpLiteral:
+  Enabled: false
 
 Style/SlicingWithRange:
   Enabled: false
diff --git a/Gemfile b/Gemfile
index 44cbc738..9ea8fb76 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,7 +26,10 @@ group :development, :test do
   gem 'rdoc'
   gem 'rspec', '~> 3.9'
   gem 'rubocop', '~> 1.50', require: false
-  gem 'webrick'
+
+  unless ENV['MODEL_PARSER'] == 'grape-swagger-entity'
+    gem 'grape-swagger-entity', git: 'https://github.com/ruby-grape/grape-swagger-entity'
+  end
 end
 
 group :test do
@@ -35,9 +38,3 @@ group :test do
   gem 'ruby-grape-danger', '~> 0.2.0', require: false
   gem 'simplecov', require: false
 end
-
-group :test, :development do
-  unless ENV['MODEL_PARSER'] == 'grape-swagger-entity'
-    gem 'grape-swagger-entity', git: 'https://github.com/ruby-grape/grape-swagger-entity'
-  end
-end
diff --git a/lib/grape-swagger/doc_methods/extensions.rb b/lib/grape-swagger/doc_methods/extensions.rb
index 7dc3f261..0c5334f7 100644
--- a/lib/grape-swagger/doc_methods/extensions.rb
+++ b/lib/grape-swagger/doc_methods/extensions.rb
@@ -56,7 +56,8 @@ def find_definition(status, path)
           return if response.nil?
 
           return response[:schema]['$ref'].split('/').last if response[:schema].key?('$ref')
-          return response[:schema]['items']['$ref'].split('/').last if response[:schema].key?('items')
+
+          response[:schema]['items']['$ref'].split('/').last if response[:schema].key?('items')
         end
 
         def add_extension_to(part, extensions)
diff --git a/lib/grape-swagger/endpoint.rb b/lib/grape-swagger/endpoint.rb
index 27e123dd..89afafea 100644
--- a/lib/grape-swagger/endpoint.rb
+++ b/lib/grape-swagger/endpoint.rb
@@ -413,7 +413,7 @@ def expose_params(value)
     end
 
     def expose_params_from_model(model)
-      model = model.is_a?(String) ? model.constantize : model
+      model = model.constantize if model.is_a?(String)
       model_name = model_name(model)
 
       return model_name if @definitions.key?(model_name)