diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index d1850aa2b5..bc6c86ed2a 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1549,19 +1549,6 @@ Style/HashAsLastArrayItem:
     - 'app/services/notify_service.rb'
     - 'db/migrate/20181024224956_migrate_account_conversations.rb'
 
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: EnforcedStyle, EnforcedShorthandSyntax, UseHashRocketsWithSymbolValues, PreferHashRocketsForNonAlnumEndingSymbols.
-# SupportedStyles: ruby19, hash_rockets, no_mixed_keys, ruby19_no_mixed_keys
-# SupportedShorthandSyntax: always, never, either, consistent
-Style/HashSyntax:
-  Exclude:
-    - 'app/helpers/application_helper.rb'
-    - 'app/models/media_attachment.rb'
-    - 'lib/terrapin/multi_pipe_extensions.rb'
-    - 'spec/controllers/admin/reports/actions_controller_spec.rb'
-    - 'spec/controllers/admin/statuses_controller_spec.rb'
-    - 'spec/controllers/concerns/signature_verification_spec.rb'
-
 # This cop supports unsafe autocorrection (--autocorrect-all).
 Style/HashTransformValues:
   Exclude:
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index c50389a938..19d297725e 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -143,7 +143,7 @@ module ApplicationHelper
     if prefers_autoplay?
       image_tag(custom_emoji.image.url, class: 'emojione', alt: ":#{custom_emoji.shortcode}:")
     else
-      image_tag(custom_emoji.image.url(:static), class: 'emojione custom-emoji', alt: ":#{custom_emoji.shortcode}", 'data-original' => full_asset_url(custom_emoji.image.url), 'data-static' => full_asset_url(custom_emoji.image.url(:static)))
+      image_tag(custom_emoji.image.url(:static), :class => 'emojione custom-emoji', :alt => ":#{custom_emoji.shortcode}", 'data-original' => full_asset_url(custom_emoji.image.url), 'data-static' => full_asset_url(custom_emoji.image.url(:static)))
     end
   end
 
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 9a465e5dd5..8689a956e9 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -34,8 +34,8 @@ class MediaAttachment < ApplicationRecord
 
   include Attachmentable
 
-  enum type: { :image => 0, :gifv => 1, :video => 2, :unknown => 3, :audio => 4 }
-  enum processing: { :queued => 0, :in_progress => 1, :complete => 2, :failed => 3 }, _prefix: true
+  enum type: { image: 0, gifv: 1, video: 2, unknown: 3, audio: 4 }
+  enum processing: { queued: 0, in_progress: 1, complete: 2, failed: 3 }, _prefix: true
 
   MAX_DESCRIPTION_LENGTH = 1_500
 
@@ -135,7 +135,7 @@ class MediaAttachment < ApplicationRecord
       convert_options: {
         output: {
           'loglevel' => 'fatal',
-          vf: 'scale=\'min(400\, iw):min(400\, ih)\':force_original_aspect_ratio=decrease',
+          :vf => 'scale=\'min(400\, iw):min(400\, ih)\':force_original_aspect_ratio=decrease',
         }.freeze,
       }.freeze,
       format: 'png',
diff --git a/lib/terrapin/multi_pipe_extensions.rb b/lib/terrapin/multi_pipe_extensions.rb
index 209f4ad6ce..bddba4a2b1 100644
--- a/lib/terrapin/multi_pipe_extensions.rb
+++ b/lib/terrapin/multi_pipe_extensions.rb
@@ -13,7 +13,7 @@ module Terrapin
 
     def pipe_options
       # Add some flags to explicitly close the other end of the pipes
-      { out: @stdout_out, err: @stderr_out, @stdout_in => :close, @stderr_in => :close }
+      { :out => @stdout_out, :err => @stderr_out, @stdout_in => :close, @stderr_in => :close }
     end
 
     def read
diff --git a/spec/controllers/admin/reports/actions_controller_spec.rb b/spec/controllers/admin/reports/actions_controller_spec.rb
index e9a8f74c0a..a84f2324e1 100644
--- a/spec/controllers/admin/reports/actions_controller_spec.rb
+++ b/spec/controllers/admin/reports/actions_controller_spec.rb
@@ -15,7 +15,7 @@ describe Admin::Reports::ActionsController do
     let(:report) { Fabricate(:report) }
 
     before do
-      post :preview, params: { report_id: report.id, action => '' }
+      post :preview, params: { :report_id => report.id, action => '' }
     end
 
     context 'when the action is "suspend"' do
diff --git a/spec/controllers/admin/statuses_controller_spec.rb b/spec/controllers/admin/statuses_controller_spec.rb
index e4954b62c9..872aed9998 100644
--- a/spec/controllers/admin/statuses_controller_spec.rb
+++ b/spec/controllers/admin/statuses_controller_spec.rb
@@ -43,7 +43,7 @@ describe Admin::StatusesController do
 
   describe 'POST #batch' do
     before do
-      post :batch, params: { account_id: account.id, action => '', admin_status_batch_action: { status_ids: status_ids } }
+      post :batch, params: { :account_id => account.id, action => '', :admin_status_batch_action => { status_ids: status_ids } }
     end
 
     let(:status_ids) { [media_attached_status.id] }
diff --git a/spec/controllers/concerns/signature_verification_spec.rb b/spec/controllers/concerns/signature_verification_spec.rb
index 45d04aa61d..df20a5d7ef 100644
--- a/spec/controllers/concerns/signature_verification_spec.rb
+++ b/spec/controllers/concerns/signature_verification_spec.rb
@@ -35,8 +35,8 @@ describe ApplicationController do
 
   before do
     routes.draw do
-      match via: [:get, :post], 'success' => 'anonymous#success'
-      match via: [:get, :post], 'signature_required' => 'anonymous#signature_required'
+      match :via => [:get, :post], 'success' => 'anonymous#success'
+      match :via => [:get, :post], 'signature_required' => 'anonymous#signature_required'
     end
   end