diff --git a/.rubocop.yml b/.rubocop.yml
index d7e1355..ee95892 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -9,9 +9,16 @@ Layout/LeadingCommentSpace:
     - '**/*.ru'
 Layout/LineLength:
   Max: 120
+Layout/SpaceAroundMethodCallOperator:
+  Enabled: true
 Layout/SpaceInsideHashLiteralBraces:
   EnforcedStyle: no_space
 
+Lint/RaiseException:
+  Enabled: true
+Lint/StructNewOverride:
+  Enabled: true
+
 Metrics/AbcSize:
   Exclude:
     - lib/api_valve/middleware/logging.rb
@@ -30,8 +37,16 @@ Style/ConditionalAssignment:
   Enabled: false
 Style/Documentation:
   Enabled: false
+Style/ExponentialNotation:
+  Enabled: true
 Style/FormatString:
   Enabled: false
+Style/HashEachMethods:
+  Enabled: true
+Style/HashTransformKeys:
+  Enabled: true
+Style/HashTransformValues:
+  Enabled: true
 Style/FormatStringToken:
   Enabled: false
 Style/FrozenStringLiteralComment:
diff --git a/api_valve.gemspec b/api_valve.gemspec
index e52f409..d66dfb5 100644
--- a/api_valve.gemspec
+++ b/api_valve.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rack-test', '~> 1.1'
   s.add_development_dependency 'rspec', '~> 3.7'
   s.add_development_dependency 'rubocop', '0.82.0'
-  s.add_development_dependency 'rubocop-rspec', '1.37.1'
+  s.add_development_dependency 'rubocop-rspec', '1.39.0'
   s.add_development_dependency 'simplecov', '~> 0.16'
   s.add_development_dependency 'timecop', '~> 0.9'
   s.add_development_dependency 'webmock', '~> 3.4'
diff --git a/spec/examples/permissions_spec.rb b/spec/examples/permissions_spec.rb
index 69d1432..36f7d19 100644
--- a/spec/examples/permissions_spec.rb
+++ b/spec/examples/permissions_spec.rb
@@ -14,7 +14,7 @@
     end
   end
 
-  context 'when providing the api token' do
+  context 'when not providing the api token' do
     it 'denies request' do
       get '/api'
       expect(last_response.status).to eq(403)