diff --git a/config/default.yml b/config/default.yml
index d88b0a4..9c058d5 100644
--- a/config/default.yml
+++ b/config/default.yml
@@ -72,9 +72,13 @@ Lint/AmbiguousBlockAssociation:
   Enabled: true
   Exclude:
     - spec/**/*_spec.rb
+
 Lint/DeprecatedOpenSSLConstant:
   Enabled: true
 
+Lint/DuplicateElsifCondition:
+  Enabled: true
+
 Lint/MixedRegexpCaptureTypes:
   Enabled: true
 
@@ -124,6 +128,34 @@ Naming/PredicateName:
 Naming/VariableNumber:
   EnforcedStyle: non_integer
 
+# ===================
+# === Performance ===
+# ===================
+
+Performance/AncestorsInclude:
+  Enabled: true
+
+Performance/BigDecimalWithNumericArgument:
+  Enabled: true
+
+Performance/RedundantSortBlock:
+  Enabled: true
+
+Performance/RedundantStringChars:
+  Enabled: true
+
+Performance/ReverseFirst:
+  Enabled: true
+
+Performance/SortReverse:
+  Enabled: true
+
+Performance/Squeeze:
+  Enabled: true
+
+Performance/StringInclude:
+  Enabled: true
+
 # ================ #
 #    Rails Cops    #
 # ================ #
@@ -192,9 +224,22 @@ RSpec/NestedGroups:
   Max: 6
 
 # =============== #
-#   Style Cops   #
+#   Style Cops    #
 # =============== #
 
+
+Style/AccessorGrouping:
+  Enabled: true
+
+Style/ArrayCoercion:
+  Enabled: true
+
+Style/BisectedAttrAccessor:
+  Enabled: true
+
+Style/CaseLikeIf:
+  Enabled: true
+
 Style/Documentation:
   Enabled: false
 
@@ -207,6 +252,12 @@ Style/FrozenStringLiteralComment:
 Style/HashEachMethods:
   Enabled: true
 
+Style/HashAsLastArrayItem:
+  Enabled: true
+
+Style/HashLikeCase:
+  Enabled: true
+
 Style/HashTransformKeys:
   Enabled: true
 
@@ -219,6 +270,15 @@ Style/ModuleFunction:
 Style/PercentLiteralDelimiters:
   Enabled: true
 
+Style/RedundantAssignment:
+  Enabled: true
+
+Style/RedundantFileExtensionInRequire:
+  Enabled: true
+
+Style/RedundantFetchBlock:
+  Enabled: true
+
 Style/RedundantRegexpCharacterClass:
   Enabled: true
   
diff --git a/rubocop-wundertax.gemspec b/rubocop-wundertax.gemspec
index 2208d35..66610ae 100644
--- a/rubocop-wundertax.gemspec
+++ b/rubocop-wundertax.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name = 'rubocop-wundertax'
-  s.version = '2.0.5'
+  s.version = '2.1.0'
   s.summary = 'RuboCop Wundertax'
   s.description = 'Code style checking for Wundertax Ruby repositories'
   s.homepage = 'https://github.com/wundertax/rubocop-wundertax'
@@ -10,7 +10,7 @@ Gem::Specification.new do |s|
 
   s.files = Dir['README.md', 'LICENSE', 'config/*.yml']
 
-  s.add_dependency 'rubocop', '~> 0.85'
+  s.add_dependency 'rubocop', '~> 0.88'
   s.add_dependency 'rubocop-performance'
   s.add_dependency 'rubocop-rails'
   s.add_dependency 'rubocop-rspec'