diff --git a/.rubocop/default.yml b/.rubocop/default.yml
index 318e5dc8f..ac9e8e0c4 100644
--- a/.rubocop/default.yml
+++ b/.rubocop/default.yml
@@ -23,10 +23,10 @@ AllCops:
     - 'node_modules/**/*'
     - 'public/assets/**/*'
     - 'public/packs/**/*'
-  RSpec:
-    Patterns:
-      - '_spec.rb$'
-      - '_examples.rb$'
+RSpec:
+  Include:
+    - "**/*_spec.rb"
+    - "**/*_examples.rb"
 
 Rails:
   Enabled: true
diff --git a/Gemfile b/Gemfile
index 11e88dd40..b97775d7c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -185,7 +185,7 @@ group :development, :test do
   gem 'rubocop'
   gem 'rubocop-performance'
   gem 'rubocop-rails'
-  gem 'rubocop-rspec', '2.0.0.pre' # see: https://github.com/rubocop-hq/rubocop-rspec/issues/1051
+  gem 'rubocop-rspec'
 
   # changelog generation
   gem 'github_changelog_generator'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9bf7b7ffc..3b4a99887 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -357,7 +357,7 @@ GEM
       omniauth (~> 1.5)
       omniauth-oauth2 (>= 1.4.0)
     openssl (2.1.2)
-    parallel (1.20.0)
+    parallel (1.20.1)
     parser (2.7.2.0)
       ast (~> 2.4.1)
     pg (0.21.0)
@@ -452,7 +452,7 @@ GEM
       rspec-support (~> 3.9.0)
     rspec-support (3.9.3)
     rszr (0.5.2)
-    rubocop (1.3.0)
+    rubocop (1.4.1)
       parallel (~> 1.10)
       parser (>= 2.7.1.5)
       rainbow (>= 2.2.2, < 4.0)
@@ -463,15 +463,16 @@ GEM
       unicode-display_width (>= 1.4.0, < 2.0)
     rubocop-ast (1.1.1)
       parser (>= 2.7.1.5)
-    rubocop-performance (1.8.1)
-      rubocop (>= 0.87.0)
+    rubocop-performance (1.9.0)
+      rubocop (>= 0.90.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     rubocop-rails (2.8.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 0.87.0)
-    rubocop-rspec (2.0.0.pre)
+    rubocop-rspec (2.0.0)
       rubocop (~> 1.0)
+      rubocop-ast (>= 1.1.0)
     ruby-progressbar (1.10.1)
     ruby-saml (1.10.2)
       nokogiri (>= 1.5.10)
@@ -655,7 +656,7 @@ DEPENDENCIES
   rubocop
   rubocop-performance
   rubocop-rails
-  rubocop-rspec (= 2.0.0.pre)
+  rubocop-rspec
   rubyntlm!
   sassc-rails
   selenium-webdriver
diff --git a/app/jobs/issue_2715_fix_broken_twitter_urls_job.rb b/app/jobs/issue_2715_fix_broken_twitter_urls_job.rb
index 792d0a965..ec5c9c846 100644
--- a/app/jobs/issue_2715_fix_broken_twitter_urls_job.rb
+++ b/app/jobs/issue_2715_fix_broken_twitter_urls_job.rb
@@ -7,7 +7,7 @@ class Issue2715FixBrokenTwitterUrlsJob < ApplicationJob
                    .where(ticket_article_types: { name: ['twitter status', 'twitter direct-message'] })
                    .order(created_at: :desc)
                    .limit(10_000)
-                   .find_each(&method(:fix_broken_links))
+                   .find_each { |article| fix_broken_links(article) }
   end
 
   private
diff --git a/app/models/token.rb b/app/models/token.rb
index 5a1de2b4d..0d8518577 100644
--- a/app/models/token.rb
+++ b/app/models/token.rb
@@ -116,7 +116,7 @@ cleanup old token
   def with_context(user:, &block)
     @effective_user = user
 
-    instance_eval(&block) if block_given?
+    instance_eval(&block) if block
   ensure
     @effective_user = nil
   end
diff --git a/db/migrate/20170905140038_cti_log_preferences_migration.rb b/db/migrate/20170905140038_cti_log_preferences_migration.rb
index 69ac51a9a..61d8277bb 100644
--- a/db/migrate/20170905140038_cti_log_preferences_migration.rb
+++ b/db/migrate/20170905140038_cti_log_preferences_migration.rb
@@ -19,6 +19,7 @@ module ActiveRecord
     end
   end
 end
+
 module ActiveRecord
   module ConnectionAdapters
     module PostgreSQL
diff --git a/lib/core_ext/string.rb b/lib/core_ext/string.rb
index f8f9d6a6e..2f5d3ca6e 100644
--- a/lib/core_ext/string.rb
+++ b/lib/core_ext/string.rb
@@ -95,7 +95,7 @@ class String
       end
       c
     end
-             .join('')
+             .join
   end
 
 =begin
diff --git a/lib/exceptions.rb b/lib/exceptions.rb
index 3951068e4..f9114b6e4 100644
--- a/lib/exceptions.rb
+++ b/lib/exceptions.rb
@@ -1,6 +1,7 @@
 module Exceptions
 
   class NotAuthorized < StandardError; end
+
   class UnprocessableEntity < StandardError; end
 
 end
diff --git a/lib/html_sanitizer.rb b/lib/html_sanitizer.rb
index 3d41b7535..cccab18ce 100644
--- a/lib/html_sanitizer.rb
+++ b/lib/html_sanitizer.rb
@@ -103,7 +103,7 @@ satinize html string based on whiltelist
 
         # clean class / only use allowed classes
         if node['class']
-          classes = node['class'].gsub(/\t|\n|\r/, '').split(' ')
+          classes = node['class'].gsub(/\t|\n|\r/, '').split
           class_new = ''
           classes.each do |local_class|
             next if classes_whitelist.exclude?(local_class.to_s.strip)
diff --git a/lib/import/exchange/folder.rb b/lib/import/exchange/folder.rb
index 505a52d1b..d3bb540db 100644
--- a/lib/import/exchange/folder.rb
+++ b/lib/import/exchange/folder.rb
@@ -33,7 +33,7 @@ module Import
       def children(*parents)
         return [] if parents.empty?
 
-        direct_descendants = parents.map(&method(:request_children))
+        direct_descendants = parents.map { |parent| request_children(parent) }
                                     .flatten.uniq.compact
 
         direct_descendants | children(*direct_descendants)
diff --git a/lib/import/helper/attributes_examples.rb b/lib/import/helper/attributes_examples.rb
index fcdf4c94e..587ea1bff 100644
--- a/lib/import/helper/attributes_examples.rb
+++ b/lib/import/helper/attributes_examples.rb
@@ -20,7 +20,7 @@ module Import
         #   Import::Helper::AttributesExamples.new do |extractor|
         #     extractor.extract(attributes)
         #   end
-        return if !block_given?
+        return if !block
 
         if block.arity.zero?
           instance_eval(&block)
diff --git a/lib/knowledge_base/menu_item_update_action.rb b/lib/knowledge_base/menu_item_update_action.rb
index f746a575c..4a3e967c1 100644
--- a/lib/knowledge_base/menu_item_update_action.rb
+++ b/lib/knowledge_base/menu_item_update_action.rb
@@ -31,9 +31,7 @@ class KnowledgeBase
       return if params.blank?
 
       params
-        .map { |location_params| update_location_using_params! knowledge_base, location_params }
-        .map(&:reload)
-        .sum
+        .map { |location_params| update_location_using_params! knowledge_base, location_params }.sum(&:reload)
     end
 
     # Mass-update KB menu items in a given location
diff --git a/lib/ldap/guid.rb b/lib/ldap/guid.rb
index 301b16acd..f9371ab22 100644
--- a/lib/ldap/guid.rb
+++ b/lib/ldap/guid.rb
@@ -92,7 +92,7 @@ class Ldap
 
       # re-order according to oracle format index and join
       oracle_format_indices = [3, 2, 1, 0, 5, 4, 7, 6, 8, 9, 10, 11, 12, 13, 14, 15]
-      result                = oracle_format_indices.map { |index| parts[index] }.join('')
+      result                = oracle_format_indices.map { |index| parts[index] }.join
 
       # add dashes if requested
       return result if !dashify
diff --git a/lib/notification_factory.rb b/lib/notification_factory.rb
index a54a4c641..de933e0cc 100644
--- a/lib/notification_factory.rb
+++ b/lib/notification_factory.rb
@@ -44,7 +44,7 @@ returns
       .map { |filename| data.merge(filename: filename) }
       .map { |data_hash| TEMPLATE_PATH_STRING % data_hash }
 
-    found = candidates.find(&File.method(:exist?))
+    found = candidates.find { |candidate| File.exist?(candidate) }
 
     raise FileNotFoundError, "Missing template files #{candidates}!" if !found
 
diff --git a/lib/pseudonymisation.rb b/lib/pseudonymisation.rb
index 7d582e5df..846e131b8 100644
--- a/lib/pseudonymisation.rb
+++ b/lib/pseudonymisation.rb
@@ -36,7 +36,7 @@ class Pseudonymisation
     return '*' if source.length == 1
     return "#{source.first}*#{source.last}" if source.exclude?(' ')
 
-    source.split(' ').map do |sub_string|
+    source.split.map do |sub_string|
       of_string(sub_string)
     end.join(' ')
   end
diff --git a/lib/sequencer/unit/import/common/model/associations/assign.rb b/lib/sequencer/unit/import/common/model/associations/assign.rb
index 633900cba..4fdd0b6ae 100644
--- a/lib/sequencer/unit/import/common/model/associations/assign.rb
+++ b/lib/sequencer/unit/import/common/model/associations/assign.rb
@@ -44,17 +44,17 @@ class Sequencer
               # Because it doesn't include associations
               # stored on OTHER TABLES (has-one, has-many, HABTM)
               def changes
-                @changes ||= unfiltered_changes.reject(&method(:no_diff?))
+                @changes ||= unfiltered_changes.reject { |_attribute, values| no_diff?(values) }
               end
 
               def unfiltered_changes
                 attrs  = associations.keys
-                before = attrs.map(&instance.method(:send))
+                before = attrs.map { |attribute| instance.send(attribute) }
                 after  = associations.values
                 attrs.zip(before.zip(after)).to_h.with_indifferent_access
               end
 
-              def no_diff?(_, values)
+              def no_diff?(values)
                 values.map!(&:sort) if values.all? { |val| val.respond_to?(:sort) }
                 values.map!(&:presence) # [nil, []] -> [nil, nil]
                 values.uniq.length == 1
diff --git a/lib/sequencer/unit/import/ldap/user/lookup/attributes.rb b/lib/sequencer/unit/import/ldap/user/lookup/attributes.rb
index 0edef07ac..66785d581 100644
--- a/lib/sequencer/unit/import/ldap/user/lookup/attributes.rb
+++ b/lib/sequencer/unit/import/ldap/user/lookup/attributes.rb
@@ -18,7 +18,7 @@ class Sequencer
               end
 
               def not_synced(entries)
-                entries.find(&method(:not_synced?))
+                entries.find { |entry| not_synced?(entry) }
               end
 
               def not_synced?(entry)
diff --git a/spec/factories/knowledge_base/category.rb b/spec/factories/knowledge_base/category.rb
index f802b3baa..22c8fda79 100644
--- a/spec/factories/knowledge_base/category.rb
+++ b/spec/factories/knowledge_base/category.rb
@@ -31,10 +31,10 @@ FactoryBot.define do
       create(:knowledge_base_category, parent: obj)
 
       level2 = create(:knowledge_base_category, parent: obj)
-      2.times { create(:knowledge_base_category, parent: level2) }
+      create_list(:knowledge_base_category, 2, parent: level2)
 
       level3 = level2.children.reload.first
-      2.times { create(:knowledge_base_category, parent: level3) }
+      create_list(:knowledge_base_category, 2, parent: level3)
 
       obj.reload
     end
diff --git a/spec/factories/notification_factory/renderer.rb b/spec/factories/notification_factory/renderer.rb
index 87813b3e6..e19e72bc1 100644
--- a/spec/factories/notification_factory/renderer.rb
+++ b/spec/factories/notification_factory/renderer.rb
@@ -1,5 +1,5 @@
 FactoryBot.define do
-  factory :notification_factory_renderer, class: NotificationFactory::Renderer do
+  factory :notification_factory_renderer, class: 'NotificationFactory::Renderer' do
     objects  { nil }
     locale   { 'en-en' }
     template { '' }
diff --git a/spec/factories/object_manager_attribute.rb b/spec/factories/object_manager_attribute.rb
index eccfb980a..11a8250f8 100644
--- a/spec/factories/object_manager_attribute.rb
+++ b/spec/factories/object_manager_attribute.rb
@@ -1,5 +1,5 @@
 FactoryBot.define do
-  factory :object_manager_attribute, class: ObjectManager::Attribute do
+  factory :object_manager_attribute, class: 'ObjectManager::Attribute' do
     transient do
       object_name { 'Ticket' }
       additional_data_options { nil }
diff --git a/spec/factories/vendor/net/ldap/entry.rb b/spec/factories/vendor/net/ldap/entry.rb
index e2972014d..215be1c8f 100644
--- a/spec/factories/vendor/net/ldap/entry.rb
+++ b/spec/factories/vendor/net/ldap/entry.rb
@@ -3,7 +3,7 @@ FactoryBot.define do
   # add custom attributes via:
   # mocked_entry         = build(:ldap_entry)
   # mocked_entry['attr'] = [value, another_value]
-  factory :ldap_entry, class: Net::LDAP::Entry do
+  factory :ldap_entry, class: 'Net::LDAP::Entry' do
     initialize_with { new('dc=com') }
   end
 end
diff --git a/spec/lib/search_index_backend_spec.rb b/spec/lib/search_index_backend_spec.rb
index 4f45ce78c..e26c7be00 100644
--- a/spec/lib/search_index_backend_spec.rb
+++ b/spec/lib/search_index_backend_spec.rb
@@ -75,7 +75,7 @@ RSpec.describe SearchIndexBackend, searchindex: true do
       QUERIES
 
       it 'appends a * to the original query' do
-        expect(queries.map(&described_class.method(:append_wildcard_to_simple_query)))
+        expect(queries.map { |query| described_class.append_wildcard_to_simple_query(query) })
           .to eq(queries.map { |q| "#{q}*" })
       end
     end
@@ -117,7 +117,7 @@ RSpec.describe SearchIndexBackend, searchindex: true do
       QUERIES
 
       it 'returns the original query verbatim' do
-        expect(queries.map(&described_class.method(:append_wildcard_to_simple_query)))
+        expect(queries.map { |query| described_class.append_wildcard_to_simple_query(query) })
           .to eq(queries)
       end
     end
diff --git a/spec/support/db_migration.rb b/spec/support/db_migration.rb
index aceadd163..9640e6a2c 100644
--- a/spec/support/db_migration.rb
+++ b/spec/support/db_migration.rb
@@ -115,7 +115,7 @@ module DbMigrationHelper
   #  remove_foreign_key(:online_notifications, :users)
   #
   # @return [nil]
-  def respond_to_missing?(*) # rubocop:disable Lint/MissingSuper
+  def respond_to_missing?(*)
     true
   end
 
diff --git a/spec/support/vcr.rb b/spec/support/vcr.rb
index 2267e036d..db218e1a2 100644
--- a/spec/support/vcr.rb
+++ b/spec/support/vcr.rb
@@ -92,6 +92,10 @@ RSpec.configure do |config|
     end
   end
 
-  config.around(:each, use_vcr: true, &RSpec::Support::VCRHelper.method(:inject_advisory))
-  config.around(:each, use_vcr: true, &RSpec::Expectations::VCRHelper.method(:inject_advisory))
+  config.around(:each, use_vcr: true) do |example|
+    RSpec::Support::VCRHelper.inject_advisory(example)
+  end
+  config.around(:each, use_vcr: true) do |example|
+    RSpec::Expectations::VCRHelper.inject_advisory(example)
+  end
 end