diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index d4f7615c80e..571df7534cb 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -10,24 +10,6 @@
 Capybara/CurrentPathExpectation:
   Enabled: false
 
-# Offense count: 23
-FactoryBot/DynamicAttributeDefinedStatically:
-  Exclude:
-    - 'spec/factories/broadcast_messages.rb'
-    - 'spec/factories/ci/builds.rb'
-    - 'spec/factories/ci/runners.rb'
-    - 'spec/factories/clusters/applications/helm.rb'
-    - 'spec/factories/clusters/platforms/kubernetes.rb'
-    - 'spec/factories/emails.rb'
-    - 'spec/factories/gpg_keys.rb'
-    - 'spec/factories/group_members.rb'
-    - 'spec/factories/merge_requests.rb'
-    - 'spec/factories/notes.rb'
-    - 'spec/factories/oauth_access_grants.rb'
-    - 'spec/factories/project_members.rb'
-    - 'spec/factories/todos.rb'
-    - 'spec/factories/uploads.rb'
-
 # Offense count: 167
 # Cop supports --auto-correct.
 Layout/EmptyLinesAroundArguments:
@@ -53,20 +35,6 @@ Layout/IndentArray:
 Layout/IndentHash:
   Enabled: false
 
-# Offense count: 11
-# Cop supports --auto-correct.
-# Configuration parameters: AllowForAlignment.
-Layout/SpaceBeforeFirstArg:
-  Exclude:
-    - 'config/routes/project.rb'
-    - 'db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb'
-    - 'features/steps/project/source/browse_files.rb'
-    - 'features/steps/project/source/markdown_render.rb'
-    - 'lib/api/runners.rb'
-    - 'spec/features/search/user_uses_search_filters_spec.rb'
-    - 'spec/routing/project_routing_spec.rb'
-    - 'spec/services/system_note_service_spec.rb'
-
 # Offense count: 93
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
@@ -74,15 +42,6 @@ Layout/SpaceBeforeFirstArg:
 Layout/SpaceInLambdaLiteral:
   Enabled: false
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBrackets.
-# SupportedStyles: space, no_space, compact
-# SupportedStylesForEmptyBrackets: space, no_space
-Layout/SpaceInsideArrayLiteralBrackets:
-  Exclude:
-    - 'spec/lib/gitlab/import_export/relation_factory_spec.rb'
-
 # Offense count: 327
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBraces, SpaceBeforeBlockParameters.
@@ -96,14 +55,6 @@ Layout/SpaceInsideBlockBraces:
 Layout/SpaceInsideParens:
   Enabled: false
 
-# Offense count: 14
-# Cop supports --auto-correct.
-Layout/SpaceInsidePercentLiteralDelimiters:
-  Exclude:
-    - 'lib/gitlab/git_access.rb'
-    - 'lib/gitlab/health_checks/fs_shards_check.rb'
-    - 'spec/lib/gitlab/health_checks/fs_shards_check_spec.rb'
-
 # Offense count: 26
 Lint/DuplicateMethods:
   Exclude:
@@ -135,31 +86,11 @@ Lint/InterpolationCheck:
 Lint/MissingCopEnableDirective:
   Enabled: false
 
-# Offense count: 2
-Lint/NestedPercentLiteral:
-  Exclude:
-    - 'lib/gitlab/git/repository.rb'
-    - 'spec/support/shared_examples/email_format_shared_examples.rb'
-
 # Offense count: 1
 Lint/ReturnInVoidContext:
   Exclude:
     - 'app/models/project.rb'
 
-# Offense count: 1
-# Configuration parameters: IgnoreImplicitReferences.
-Lint/ShadowedArgument:
-  Exclude:
-    - 'lib/gitlab/database/sha_attribute.rb'
-
-# Offense count: 3
-# Cop supports --auto-correct.
-Lint/UnneededRequireStatement:
-  Exclude:
-    - 'db/post_migrate/20161221153951_rename_reserved_project_names.rb'
-    - 'db/post_migrate/20170313133418_rename_more_reserved_project_names.rb'
-    - 'lib/declarative_policy.rb'
-
 # Offense count: 9
 Lint/UriEscapeUnescape:
   Exclude:
@@ -199,16 +130,6 @@ Naming/HeredocDelimiterCase:
 Naming/HeredocDelimiterNaming:
   Enabled: false
 
-# Offense count: 1
-Performance/UnfreezeString:
-  Exclude:
-    - 'features/steps/project/commits/commits.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Performance/UriDefaultParser:
-  Exclude:
-    - 'lib/gitlab/url_sanitizer.rb'
 
 # Offense count: 3821
 # Configuration parameters: Prefixes.
diff --git a/config/routes/project.rb b/config/routes/project.rb
index ef1bc4bbf42..5236962b999 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -365,7 +365,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
           get :discussions, format: :json
         end
         collection do
-          post  :bulk_update
+          post :bulk_update
         end
       end
 
diff --git a/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb b/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb
index 55bf40ba24d..cc5cb355579 100644
--- a/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb
+++ b/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb
@@ -13,7 +13,7 @@ class AddForeignKeyPipelineSchedulesAndPipelines < ActiveRecord::Migration
         'SET NULL'
       end
 
-    add_concurrent_foreign_key  :ci_pipelines, :ci_pipeline_schedules,
+    add_concurrent_foreign_key :ci_pipelines, :ci_pipeline_schedules,
       column: :pipeline_schedule_id, on_delete: on_delete
   end
 
diff --git a/db/post_migrate/20161221153951_rename_reserved_project_names.rb b/db/post_migrate/20161221153951_rename_reserved_project_names.rb
index 017c58477ac..08d7f499eec 100644
--- a/db/post_migrate/20161221153951_rename_reserved_project_names.rb
+++ b/db/post_migrate/20161221153951_rename_reserved_project_names.rb
@@ -1,5 +1,3 @@
-require 'thread'
-
 class RenameReservedProjectNames < ActiveRecord::Migration
   include Gitlab::Database::MigrationHelpers
   include Gitlab::ShellAdapter
diff --git a/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb b/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb
index 3e8ccfdb899..43a37667250 100644
--- a/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb
+++ b/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb
@@ -1,5 +1,3 @@
-require 'thread'
-
 class RenameMoreReservedProjectNames < ActiveRecord::Migration
   include Gitlab::Database::MigrationHelpers
   include Gitlab::ShellAdapter
diff --git a/lib/api/runners.rb b/lib/api/runners.rb
index 60868821810..ce70460af11 100644
--- a/lib/api/runners.rb
+++ b/lib/api/runners.rb
@@ -113,7 +113,7 @@ module API
         optional :status, type: String, desc: 'Status of the job', values: Ci::Build::AVAILABLE_STATUSES
         use :pagination
       end
-      get  ':id/jobs' do
+      get ':id/jobs' do
         runner = get_runner(params[:id])
         authenticate_list_runners_jobs!(runner)
 
diff --git a/lib/declarative_policy.rb b/lib/declarative_policy.rb
index dda6cd38dcd..10d34b0c6e7 100644
--- a/lib/declarative_policy.rb
+++ b/lib/declarative_policy.rb
@@ -10,8 +10,6 @@ require_dependency 'declarative_policy/step'
 
 require_dependency 'declarative_policy/base'
 
-require 'thread'
-
 module DeclarativePolicy
   CLASS_CACHE_MUTEX = Mutex.new
   CLASS_CACHE_IVAR = :@__DeclarativePolicy_CLASS_CACHE
diff --git a/lib/gitlab/git_access.rb b/lib/gitlab/git_access.rb
index 30cd09a0ca7..240a0d7d1b8 100644
--- a/lib/gitlab/git_access.rb
+++ b/lib/gitlab/git_access.rb
@@ -24,8 +24,8 @@ module Gitlab
       cannot_push_to_read_only: "You can't push code to a read-only GitLab instance."
     }.freeze
 
-    DOWNLOAD_COMMANDS = %w{ git-upload-pack git-upload-archive }.freeze
-    PUSH_COMMANDS = %w{ git-receive-pack }.freeze
+    DOWNLOAD_COMMANDS = %w{git-upload-pack git-upload-archive}.freeze
+    PUSH_COMMANDS = %w{git-receive-pack}.freeze
     ALL_COMMANDS = DOWNLOAD_COMMANDS + PUSH_COMMANDS
 
     attr_reader :actor, :project, :protocol, :authentication_abilities, :namespace_path, :project_path, :redirected_path, :auth_result_type, :changes
diff --git a/lib/gitlab/url_sanitizer.rb b/lib/gitlab/url_sanitizer.rb
index 308a95d2f09..29672d68cad 100644
--- a/lib/gitlab/url_sanitizer.rb
+++ b/lib/gitlab/url_sanitizer.rb
@@ -3,7 +3,7 @@ module Gitlab
     ALLOWED_SCHEMES = %w[http https ssh git].freeze
 
     def self.sanitize(content)
-      regexp = URI::Parser.new.make_regexp(ALLOWED_SCHEMES)
+      regexp = URI::DEFAULT_PARSER.make_regexp(ALLOWED_SCHEMES)
 
       content.gsub(regexp) { |url| new(url).masked_url }
     rescue Addressable::URI::InvalidURIError
diff --git a/spec/factories/broadcast_messages.rb b/spec/factories/broadcast_messages.rb
index 9a65e7f8a3f..1a2be5e9552 100644
--- a/spec/factories/broadcast_messages.rb
+++ b/spec/factories/broadcast_messages.rb
@@ -1,17 +1,17 @@
 FactoryBot.define do
   factory :broadcast_message do
     message "MyText"
-    starts_at 1.day.ago
-    ends_at 1.day.from_now
+    starts_at { 1.day.ago }
+    ends_at { 1.day.from_now }
 
     trait :expired do
-      starts_at 5.days.ago
-      ends_at 3.days.ago
+      starts_at { 5.days.ago }
+      ends_at { 3.days.ago }
     end
 
     trait :future do
-      starts_at 5.days.from_now
-      ends_at 6.days.from_now
+      starts_at { 5.days.from_now }
+      ends_at { 6.days.from_now }
     end
   end
 end
diff --git a/spec/factories/ci/builds.rb b/spec/factories/ci/builds.rb
index 9813190925b..0baa4ecc4e0 100644
--- a/spec/factories/ci/builds.rb
+++ b/spec/factories/ci/builds.rb
@@ -159,12 +159,12 @@ FactoryBot.define do
     end
 
     trait :erased do
-      erased_at Time.now
+      erased_at { Time.now }
       erased_by factory: :user
     end
 
     trait :queued do
-      queued_at Time.now
+      queued_at { Time.now }
       runner factory: :ci_runner
     end
 
@@ -194,7 +194,7 @@ FactoryBot.define do
     end
 
     trait :expired do
-      artifacts_expire_at 1.minute.ago
+      artifacts_expire_at { 1.minute.ago }
     end
 
     trait :with_commit do
diff --git a/spec/factories/ci/runners.rb b/spec/factories/ci/runners.rb
index 347e4f433e2..f564e7bee47 100644
--- a/spec/factories/ci/runners.rb
+++ b/spec/factories/ci/runners.rb
@@ -9,7 +9,7 @@ FactoryBot.define do
     runner_type :instance_type
 
     trait :online do
-      contacted_at Time.now
+      contacted_at { Time.now }
     end
 
     trait :instance do
diff --git a/spec/factories/clusters/applications/helm.rb b/spec/factories/clusters/applications/helm.rb
index 5756486df27..3c9ca22a051 100644
--- a/spec/factories/clusters/applications/helm.rb
+++ b/spec/factories/clusters/applications/helm.rb
@@ -42,7 +42,7 @@ FactoryBot.define do
 
     trait :timeouted do
       installing
-      updated_at ClusterWaitForAppInstallationWorker::TIMEOUT.ago
+      updated_at { ClusterWaitForAppInstallationWorker::TIMEOUT.ago }
     end
 
     factory :clusters_applications_ingress, class: Clusters::Applications::Ingress do
diff --git a/spec/factories/clusters/platforms/kubernetes.rb b/spec/factories/clusters/platforms/kubernetes.rb
index 36ac2372204..4a0d1b181ea 100644
--- a/spec/factories/clusters/platforms/kubernetes.rb
+++ b/spec/factories/clusters/platforms/kubernetes.rb
@@ -3,11 +3,10 @@ FactoryBot.define do
     cluster
     namespace nil
     api_url 'https://kubernetes.example.com'
-    token 'a' * 40
+    token { 'a' * 40 }
 
     trait :configured do
       api_url 'https://kubernetes.example.com'
-      token 'a' * 40
       username 'xxxxxx'
       password 'xxxxxx'
 
diff --git a/spec/factories/emails.rb b/spec/factories/emails.rb
index d23ddf9d79b..feacd5ccf15 100644
--- a/spec/factories/emails.rb
+++ b/spec/factories/emails.rb
@@ -3,7 +3,7 @@ FactoryBot.define do
     user
     email { generate(:email_alias) }
 
-    trait(:confirmed) { confirmed_at Time.now }
+    trait(:confirmed) { confirmed_at { Time.now } }
     trait(:skip_validate) { to_create {|instance| instance.save(validate: false) } }
   end
 end
diff --git a/spec/factories/gpg_keys.rb b/spec/factories/gpg_keys.rb
index 51b8ddc9934..3c0f43cc1b6 100644
--- a/spec/factories/gpg_keys.rb
+++ b/spec/factories/gpg_keys.rb
@@ -2,11 +2,11 @@ require_relative '../support/helpers/gpg_helpers'
 
 FactoryBot.define do
   factory :gpg_key do
-    key GpgHelpers::User1.public_key
+    key { GpgHelpers::User1.public_key }
     user
 
     factory :gpg_key_with_subkeys do
-      key GpgHelpers::User1.public_key_with_extra_signing_key
+      key { GpgHelpers::User1.public_key_with_extra_signing_key }
     end
   end
 end
diff --git a/spec/factories/group_members.rb b/spec/factories/group_members.rb
index 47036560b9d..12be63e5d92 100644
--- a/spec/factories/group_members.rb
+++ b/spec/factories/group_members.rb
@@ -9,7 +9,7 @@ FactoryBot.define do
     trait(:developer) { access_level GroupMember::DEVELOPER }
     trait(:maintainer) { access_level GroupMember::MAINTAINER }
     trait(:owner)     { access_level GroupMember::OWNER }
-    trait(:access_request) { requested_at Time.now }
+    trait(:access_request) { requested_at { Time.now } }
 
     trait(:invited) do
       user_id nil
diff --git a/spec/factories/merge_requests.rb b/spec/factories/merge_requests.rb
index b8b089b069b..8094c43b065 100644
--- a/spec/factories/merge_requests.rb
+++ b/spec/factories/merge_requests.rb
@@ -80,7 +80,7 @@ FactoryBot.define do
 
     trait :merge_when_pipeline_succeeds do
       merge_when_pipeline_succeeds true
-      merge_user author
+      merge_user { author }
     end
 
     trait :remove_source_branch do
diff --git a/spec/factories/notes.rb b/spec/factories/notes.rb
index 6844ed8aa4a..2d1f48bf249 100644
--- a/spec/factories/notes.rb
+++ b/spec/factories/notes.rb
@@ -90,7 +90,7 @@ FactoryBot.define do
       noteable nil
       noteable_type 'Commit'
       noteable_id nil
-      commit_id RepoHelpers.sample_commit.id
+      commit_id { RepoHelpers.sample_commit.id }
     end
 
     trait :legacy_diff_note do
diff --git a/spec/factories/oauth_access_grants.rb b/spec/factories/oauth_access_grants.rb
index 9e6af24c4eb..02c51cd9899 100644
--- a/spec/factories/oauth_access_grants.rb
+++ b/spec/factories/oauth_access_grants.rb
@@ -3,7 +3,7 @@ FactoryBot.define do
     resource_owner_id { create(:user).id }
     application
     token { Doorkeeper::OAuth::Helpers::UniqueToken.generate }
-    expires_in 2.hours
+    expires_in { 2.hours }
 
     redirect_uri { application.redirect_uri }
     scopes { application.scopes }
diff --git a/spec/factories/project_members.rb b/spec/factories/project_members.rb
index 22a8085ea45..c72e0487895 100644
--- a/spec/factories/project_members.rb
+++ b/spec/factories/project_members.rb
@@ -8,7 +8,7 @@ FactoryBot.define do
     trait(:reporter)  { access_level ProjectMember::REPORTER }
     trait(:developer) { access_level ProjectMember::DEVELOPER }
     trait(:maintainer) { access_level ProjectMember::MAINTAINER }
-    trait(:access_request) { requested_at Time.now }
+    trait(:access_request) { requested_at { Time.now } }
 
     trait(:invited) do
       user_id nil
diff --git a/spec/factories/todos.rb b/spec/factories/todos.rb
index 14486c80341..ed3d87eb76b 100644
--- a/spec/factories/todos.rb
+++ b/spec/factories/todos.rb
@@ -49,7 +49,7 @@ FactoryBot.define do
     author
     user
     action { Todo::ASSIGNED }
-    commit_id RepoHelpers.sample_commit.id
+    commit_id { RepoHelpers.sample_commit.id }
     target_type "Commit"
   end
 end
diff --git a/spec/factories/uploads.rb b/spec/factories/uploads.rb
index 81c485fba1a..7256f785e1f 100644
--- a/spec/factories/uploads.rb
+++ b/spec/factories/uploads.rb
@@ -1,7 +1,7 @@
 FactoryBot.define do
   factory :upload do
     model { build(:project) }
-    size 100.kilobytes
+    size { 100.kilobytes }
     uploader "AvatarUploader"
     mount_point :avatar
     secret nil
@@ -19,13 +19,13 @@ FactoryBot.define do
       uploader "PersonalFileUploader"
       path { File.join(secret, filename) }
       model { build(:personal_snippet) }
-      secret SecureRandom.hex
+      secret { SecureRandom.hex }
     end
 
     trait :issuable_upload do
       uploader "FileUploader"
       path { File.join(secret, filename) }
-      secret SecureRandom.hex
+      secret { SecureRandom.hex }
     end
 
     trait :with_file do
@@ -43,14 +43,14 @@ FactoryBot.define do
       model { build(:group) }
       path { File.join(secret, filename) }
       uploader "NamespaceFileUploader"
-      secret SecureRandom.hex
+      secret { SecureRandom.hex }
     end
 
     trait :favicon_upload do
       model { build(:appearance) }
       path { File.join(secret, filename) }
       uploader "FaviconUploader"
-      secret SecureRandom.hex
+      secret { SecureRandom.hex }
     end
 
     trait :attachment_upload do
diff --git a/spec/features/search/user_uses_search_filters_spec.rb b/spec/features/search/user_uses_search_filters_spec.rb
index 66afe163447..0725ff178ac 100644
--- a/spec/features/search/user_uses_search_filters_spec.rb
+++ b/spec/features/search/user_uses_search_filters_spec.rb
@@ -14,7 +14,7 @@ describe 'User uses search filters', :js do
     visit(search_path)
   end
 
-  context' when filtering by group' do
+  context 'when filtering by group' do
     it 'shows group projects' do
       find('.js-search-group-dropdown').click
 
@@ -36,7 +36,7 @@ describe 'User uses search filters', :js do
     end
   end
 
-  context' when filtering by project' do
+  context 'when filtering by project' do
     it 'shows a project' do
       page.within('.project-filter') do
         find('.js-search-project-dropdown').click
diff --git a/spec/lib/gitlab/import_export/relation_factory_spec.rb b/spec/lib/gitlab/import_export/relation_factory_spec.rb
index cf9e0f71910..a31f77484d8 100644
--- a/spec/lib/gitlab/import_export/relation_factory_spec.rb
+++ b/spec/lib/gitlab/import_export/relation_factory_spec.rb
@@ -191,9 +191,7 @@ describe Gitlab::ImportExport::RelationFactory do
         "author" => {
           "name" => "Administrator"
         },
-        "events" => [
-
-        ]
+        "events" => []
       }
     end
 
diff --git a/spec/routing/project_routing_spec.rb b/spec/routing/project_routing_spec.rb
index 5abc6d81958..56df8dddbc1 100644
--- a/spec/routing/project_routing_spec.rb
+++ b/spec/routing/project_routing_spec.rb
@@ -258,10 +258,10 @@ describe 'project routing' do
     end
 
     it 'to #logs_tree' do
-      expect(get('/gitlab/gitlabhq/refs/stable/logs_tree')).to             route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'stable')
-      expect(get('/gitlab/gitlabhq/refs/feature%2345/logs_tree')).to             route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature#45')
-      expect(get('/gitlab/gitlabhq/refs/feature%2B45/logs_tree')).to             route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature+45')
-      expect(get('/gitlab/gitlabhq/refs/feature@45/logs_tree')).to             route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature@45')
+      expect(get('/gitlab/gitlabhq/refs/stable/logs_tree')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'stable')
+      expect(get('/gitlab/gitlabhq/refs/feature%2345/logs_tree')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature#45')
+      expect(get('/gitlab/gitlabhq/refs/feature%2B45/logs_tree')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature+45')
+      expect(get('/gitlab/gitlabhq/refs/feature@45/logs_tree')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature@45')
       expect(get('/gitlab/gitlabhq/refs/stable/logs_tree/foo/bar/baz')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'stable', path: 'foo/bar/baz')
       expect(get('/gitlab/gitlabhq/refs/feature%2345/logs_tree/foo/bar/baz')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature#45', path: 'foo/bar/baz')
       expect(get('/gitlab/gitlabhq/refs/feature%2B45/logs_tree/foo/bar/baz')).to route_to('projects/refs#logs_tree', namespace_id: 'gitlab', project_id: 'gitlabhq', id: 'feature+45', path: 'foo/bar/baz')
diff --git a/spec/services/system_note_service_spec.rb b/spec/services/system_note_service_spec.rb
index f4b7cb8c90a..a18126ee339 100644
--- a/spec/services/system_note_service_spec.rb
+++ b/spec/services/system_note_service_spec.rb
@@ -324,7 +324,7 @@ describe SystemNoteService do
     end
 
     it "posts the 'merge when pipeline succeeds' system note" do
-      expect(subject.note).to eq  "canceled the automatic merge"
+      expect(subject.note).to eq "canceled the automatic merge"
     end
   end