diff --git a/.rubocop.yml b/.rubocop.yml
index b8da595..ad1a448 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,6 +4,7 @@ require:
 
 AllCops:
   TargetRubyVersion: 2.5
+  NewCops: enable
 
 Metrics/BlockLength:
   Exclude:
diff --git a/lib/rubocop/cop/i18n/rails_i18n/decorate_string.rb b/lib/rubocop/cop/i18n/rails_i18n/decorate_string.rb
index 773a5c0..6ccfe6d 100644
--- a/lib/rubocop/cop/i18n/rails_i18n/decorate_string.rb
+++ b/lib/rubocop/cop/i18n/rails_i18n/decorate_string.rb
@@ -122,7 +122,7 @@ def regexp_from_string_type
             when 'sentence'            then SENTENCE_REGEXP
             when 'fragmented_sentence' then FRAGMENTED_SENTENCE_REGEXP
             when 'fragment'            then FRAGMENT_REGEXP
-            else
+            else # rubocop:disable Lint/DuplicateBranch
               SENTENCE_REGEXP
             end
           end
diff --git a/spec/rubocop/cop/i18n/gettext/decorate_function_message_spec.rb b/spec/rubocop/cop/i18n/gettext/decorate_function_message_spec.rb
index 87f193e..0501177 100644
--- a/spec/rubocop/cop/i18n/gettext/decorate_function_message_spec.rb
+++ b/spec/rubocop/cop/i18n/gettext/decorate_function_message_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::GetText::DecorateFunctionMessage do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::GetText::DecorateFunctionMessage, :config, :config do
   before(:each) do
     investigate(cop, source)
   end
diff --git a/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_interpolation_spec.rb b/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_interpolation_spec.rb
index 1c9ba16..7beaf3a 100644
--- a/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_interpolation_spec.rb
+++ b/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_interpolation_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::GetText::DecorateStringFormattingUsingInterpolation do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::GetText::DecorateStringFormattingUsingInterpolation, :config, :config do
   before(:each) do
     investigate(cop, source)
   end
diff --git a/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_percent_spec.rb b/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_percent_spec.rb
index 56f91d4..77b5782 100644
--- a/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_percent_spec.rb
+++ b/spec/rubocop/cop/i18n/gettext/decorate_string_formatting_using_percent_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::GetText::DecorateStringFormattingUsingPercent do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::GetText::DecorateStringFormattingUsingPercent, :config, :config do
   before(:each) do
     investigate(cop, source)
   end
diff --git a/spec/rubocop/cop/i18n/gettext/decorate_string_spec.rb b/spec/rubocop/cop/i18n/gettext/decorate_string_spec.rb
index 7e8ffda..46ddb9b 100644
--- a/spec/rubocop/cop/i18n/gettext/decorate_string_spec.rb
+++ b/spec/rubocop/cop/i18n/gettext/decorate_string_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::GetText::DecorateString do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::GetText::DecorateString, :config, :config do
   before(:each) do
     investigate(cop, source)
   end
diff --git a/spec/rubocop/cop/i18n/rails_i18n/decorate_string_formatting_using_interpolation_spec.rb b/spec/rubocop/cop/i18n/rails_i18n/decorate_string_formatting_using_interpolation_spec.rb
index b741018..6c72ca3 100644
--- a/spec/rubocop/cop/i18n/rails_i18n/decorate_string_formatting_using_interpolation_spec.rb
+++ b/spec/rubocop/cop/i18n/rails_i18n/decorate_string_formatting_using_interpolation_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::RailsI18n::DecorateStringFormattingUsingInterpolation do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::RailsI18n::DecorateStringFormattingUsingInterpolation, :config, :config do
   before(:each) do
     investigate(cop, source)
   end
diff --git a/spec/rubocop/cop/i18n/rails_i18n/decorate_string_spec.rb b/spec/rubocop/cop/i18n/rails_i18n/decorate_string_spec.rb
index ec7b27e..f215a42 100644
--- a/spec/rubocop/cop/i18n/rails_i18n/decorate_string_spec.rb
+++ b/spec/rubocop/cop/i18n/rails_i18n/decorate_string_spec.rb
@@ -2,9 +2,7 @@
 
 require 'spec_helper'
 
-describe RuboCop::Cop::I18n::RailsI18n::DecorateString do
-  let(:config) { RuboCop::Config.new }
-  subject(:cop) { described_class.new(config) }
+describe RuboCop::Cop::I18n::RailsI18n::DecorateString, :config, :config do
   before(:each) do
     investigate(cop, source)
   end