diff --git a/.rubocop.yml b/.rubocop.yml
index 2e3569c..a3151a7 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -389,6 +389,12 @@ Lint/RequireRangeParentheses:
 Lint/UselessRescue:
   Enabled: true
 
+Lint/MixedCaseRange:
+  Enabled: true
+
+Lint/RedundantRegexpQuantifiers:
+  Enabled: true
+
 Naming/BlockForwarding:
   Enabled: true
 
@@ -446,6 +452,30 @@ Style/RedundantInitialize:
 Style/RedundantStringEscape:
   Enabled: true
 
+Style/ExactRegexpMatch:
+  Enabled: true
+
+Style/RedundantArrayConstructor:
+  Enabled: true
+
+Style/RedundantCurrentDirectoryInPath:
+  Enabled: true
+
+Style/RedundantFilterChain:
+  Enabled: true
+
+Style/RedundantRegexpArgument:
+  Enabled: true
+
+Style/RedundantRegexpConstructor:
+  Enabled: true
+
+Style/ReturnNilInPredicateMethodDefinition:
+  Enabled: true
+
+Style/YAMLFileRead:
+  Enabled: true
+
 RSpec/ExampleLength:
   Enabled: false
 
@@ -497,12 +527,6 @@ RSpec/SubjectDeclaration:
 RSpec/VerifiedDoubleReference:
   Enabled: true
 
-RSpec/FactoryBot/ConsistentParenthesesStyle:
-  Enabled: true
-
-RSpec/FactoryBot/SyntaxMethods:
-  Enabled: true
-
 RSpec/Rails/AvoidSetupHook:
   Enabled: true
 
@@ -518,9 +542,6 @@ RSpec/DuplicatedMetadata:
 RSpec/PendingWithoutReason:
   Enabled: true
 
-RSpec/FactoryBot/FactoryNameStyle:
-  Enabled: true
-
 RSpec/RedundantAround:
   Enabled: true
 
@@ -533,6 +554,39 @@ RSpec/Rails/MinitestAssertions:
 RSpec/Rails/TravelAround:
   Enabled: true
 
+RSpec/BeEmpty:
+  Enabled: true
+
+RSpec/ContainExactly:
+  Enabled: true
+
+RSpec/EmptyMetadata:
+  Enabled: true
+
+RSpec/Eq:
+  Enabled: true
+
+RSpec/IndexedLet:
+  Enabled: false
+
+RSpec/MatchArray:
+  Enabled: true
+
+RSpec/MetadataStyle:
+  Enabled: true
+
+RSpec/ReceiveMessages:
+  Enabled: true
+
+RSpec/SpecFilePathFormat:
+  Enabled: false
+
+RSpec/SpecFilePathSuffix:
+  Enabled: true
+
+RSpec/Rails/NegationBeValid:
+  Enabled: true
+
 Capybara/NegationMatcher:
   Enabled: true
 
@@ -547,3 +601,33 @@ Capybara/SpecificMatcher:
 
 Capybara/MatchStyle:
   Enabled: true
+
+Capybara/ClickLinkOrButtonStyle:
+  Enabled: true
+
+Capybara/RSpec/HaveSelector:
+  Enabled: true
+
+Capybara/RSpec/PredicateMatcher:
+  Enabled: true
+
+FactoryBot/ConsistentParenthesesStyle:
+  Enabled: true
+
+FactoryBot/SyntaxMethods:
+  Enabled: true
+
+FactoryBot/FactoryNameStyle:
+  Enabled: true
+
+FactoryBot/AssociationStyle:
+  Enabled: true
+
+FactoryBot/FactoryAssociationWithStrategy:
+  Enabled: true
+
+FactoryBot/IdSequence:
+  Enabled: true
+
+FactoryBot/RedundantFactoryOption:
+  Enabled: true
diff --git a/spec/lib/health_monitor/configuration_spec.rb b/spec/lib/health_monitor/configuration_spec.rb
index 10966b2..e6add2e 100644
--- a/spec/lib/health_monitor/configuration_spec.rb
+++ b/spec/lib/health_monitor/configuration_spec.rb
@@ -51,7 +51,7 @@ class CustomProvider < HealthMonitor::Providers::Base
       it 'accepts' do
         expect {
           subject.add_custom_provider(CustomProvider)
-        }.to change(subject, :providers).to(Array.new([CustomProvider]))
+        }.to change(subject, :providers).to([CustomProvider])
       end
 
       it 'returns CustomProvider class' do
diff --git a/spec/support/providers.rb b/spec/support/providers.rb
index e102f55..4172cd2 100644
--- a/spec/support/providers.rb
+++ b/spec/support/providers.rb
@@ -46,8 +46,7 @@ def stub_sidekiq
     allow_any_instance_of(Sidekiq::Workers).to receive(:size).and_return(5)
 
     queue = instance_double(Sidekiq::Queue)
-    allow(queue).to receive(:latency).and_return(5)
-    allow(queue).to receive(:size).and_return(5)
+    allow(queue).to receive_messages(latency: 5, size: 10)
     allow(Sidekiq::Queue).to receive(:new).and_return(queue)
 
     retry_set = instance_double(Sidekiq::RetrySet)