diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index ac65c1589..13f7b8c09 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -241,18 +241,6 @@ Style/StringConcatenation:
   Exclude:
     - 'config/initializers/paperclip.rb'
 
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: EnforcedStyle, ConsistentQuotesInMultiline.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiterals:
-  Exclude:
-    - 'config/environments/production.rb'
-    - 'config/initializers/backtrace_silencers.rb'
-    - 'config/initializers/http_client_proxy.rb'
-    - 'config/initializers/rack_attack.rb'
-    - 'config/initializers/webauthn.rb'
-    - 'config/routes.rb'
-
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: EnforcedStyleForMultiline.
 # SupportedStylesForMultiline: comma, consistent_comma, no_comma
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 11da32f18..6587acfb3 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "active_support/core_ext/integer/time"
+require 'active_support/core_ext/integer/time'
 
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
@@ -44,7 +44,7 @@ Rails.application.configure do
   config.force_ssl = true
   config.ssl_options = {
     redirect: {
-      exclude: ->(request) { request.path.start_with?('/health') || request.headers["Host"].end_with?('.onion') || request.headers["Host"].end_with?('.i2p') }
+      exclude: ->(request) { request.path.start_with?('/health') || request.headers['Host'].end_with?('.onion') || request.headers['Host'].end_with?('.i2p') }
     }
   }
 
diff --git a/config/initializers/backtrace_silencers.rb b/config/initializers/backtrace_silencers.rb
index 74f30e887..d43cc1d2f 100644
--- a/config/initializers/backtrace_silencers.rb
+++ b/config/initializers/backtrace_silencers.rb
@@ -7,4 +7,4 @@
 
 # You can also remove all the silencers if you're trying to debug a problem that might stem from framework code
 # by setting BACKTRACE=1 before calling your invocation, like "BACKTRACE=1 ./bin/rails runner 'MyClass.perform'".
-Rails.backtrace_cleaner.remove_silencers! if ENV["BACKTRACE"]
+Rails.backtrace_cleaner.remove_silencers! if ENV['BACKTRACE']
diff --git a/config/initializers/http_client_proxy.rb b/config/initializers/http_client_proxy.rb
index 7332ffb53..93a8d33ff 100644
--- a/config/initializers/http_client_proxy.rb
+++ b/config/initializers/http_client_proxy.rb
@@ -7,7 +7,7 @@ Rails.application.configure do
     proxy = URI.parse(ENV['http_proxy'])
 
     raise "Unsupported proxy type: #{proxy.scheme}" unless %w(http https).include? proxy.scheme
-    raise "No proxy host" unless proxy.host
+    raise 'No proxy host' unless proxy.host
 
     host = proxy.host
     host = host[1...-1] if host[0] == '[' # for IPv6 address
@@ -24,7 +24,7 @@ Rails.application.configure do
     proxy = URI.parse(ENV['http_hidden_proxy'])
 
     raise "Unsupported proxy type: #{proxy.scheme}" unless %w(http https).include? proxy.scheme
-    raise "No proxy host" unless proxy.host
+    raise 'No proxy host' unless proxy.host
 
     host = proxy.host
     host = host[1...-1] if host[0] == '[' # for IPv6 address
diff --git a/config/initializers/rack_attack.rb b/config/initializers/rack_attack.rb
index 429dbd324..fa1bdca54 100644
--- a/config/initializers/rack_attack.rb
+++ b/config/initializers/rack_attack.rb
@@ -14,7 +14,7 @@ class Rack::Attack
     end
 
     def remote_ip
-      @remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
+      @remote_ip ||= (@env['action_dispatch.remote_ip'] || ip).to_s
     end
 
     def throttleable_remote_ip
diff --git a/config/initializers/webauthn.rb b/config/initializers/webauthn.rb
index 924ce6d87..40dfeb831 100644
--- a/config/initializers/webauthn.rb
+++ b/config/initializers/webauthn.rb
@@ -6,7 +6,7 @@ WebAuthn.configure do |config|
   config.origin = "#{Rails.configuration.x.use_https ? 'https' : 'http'}://#{Rails.configuration.x.web_domain}"
 
   # Relying Party name for display purposes
-  config.rp_name = "Mastodon"
+  config.rp_name = 'Mastodon'
 
   # Optionally configure a client timeout hint, in milliseconds.
   # This hint specifies how long the browser should wait for an
diff --git a/config/routes.rb b/config/routes.rb
index d032b5110..3d3c94096 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -139,7 +139,7 @@ Rails.application.routes.draw do
 
   resource :inbox, only: [:create], module: :activitypub
 
-  get '/:encoded_at(*path)', to: redirect("/@%{path}"), constraints: { encoded_at: /%40/ }
+  get '/:encoded_at(*path)', to: redirect('/@%{path}'), constraints: { encoded_at: /%40/ }
 
   constraints(username: %r{[^@/.]+}) do
     with_options to: 'accounts#show' do