diff --git a/.rubocop.yml b/.rubocop.yml
index 5278ee38ca9..eb3fcba43a6 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -101,6 +101,10 @@ Style/Copyright:
 Style/HashSyntax:
   EnforcedStyle: ruby19_no_mixed_keys
 
+Style/NumericLiterals:
+  AllowedPatterns:
+    - \d{4}_\d{2}_\d{2}_\d{6} # For DB migration date version number readability
+
 Style/PercentLiteralDelimiters:
   PreferredDelimiters:
     '%i': '()'
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index e24ce7e3278..12e4f14ec9a 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -3149,16 +3149,6 @@ Style/MutableConstant:
     - 'lib/mastodon/snowflake.rb'
     - 'spec/controllers/api/base_controller_spec.rb'
 
-# Offense count: 7
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: MinDigits, Strict, AllowedNumbers, AllowedPatterns.
-Style/NumericLiterals:
-  Exclude:
-    - 'db/migrate/20180812173710_copy_status_stats.rb'
-    - 'db/migrate/20181116173541_copy_account_stats.rb'
-    - 'lib/mastodon/maintenance_cli.rb'
-    - 'spec/controllers/api/v1/markers_controller_spec.rb'
-
 # Offense count: 10
 # Configuration parameters: AllowedMethods.
 # AllowedMethods: respond_to_missing?
diff --git a/db/migrate/20180812173710_copy_status_stats.rb b/db/migrate/20180812173710_copy_status_stats.rb
index ff10c18d9d6..9b2971bebc1 100644
--- a/db/migrate/20180812173710_copy_status_stats.rb
+++ b/db/migrate/20180812173710_copy_status_stats.rb
@@ -19,7 +19,7 @@ class CopyStatusStats < ActiveRecord::Migration[5.2]
 
   def supports_upsert?
     version = select_one("SELECT current_setting('server_version_num') AS v")['v'].to_i
-    version >= 90500
+    version >= 90_500
   end
 
   def up_fast
diff --git a/db/migrate/20181116173541_copy_account_stats.rb b/db/migrate/20181116173541_copy_account_stats.rb
index 8e27eb11b57..20dc8519570 100644
--- a/db/migrate/20181116173541_copy_account_stats.rb
+++ b/db/migrate/20181116173541_copy_account_stats.rb
@@ -19,7 +19,7 @@ class CopyAccountStats < ActiveRecord::Migration[5.2]
 
   def supports_upsert?
     version = select_one("SELECT current_setting('server_version_num') AS v")['v'].to_i
-    version >= 90500
+    version >= 90_500
   end
 
   def up_fast
diff --git a/lib/mastodon/maintenance_cli.rb b/lib/mastodon/maintenance_cli.rb
index 85937da8126..a86a4f2f62e 100644
--- a/lib/mastodon/maintenance_cli.rb
+++ b/lib/mastodon/maintenance_cli.rb
@@ -13,8 +13,8 @@ module Mastodon
       true
     end
 
-    MIN_SUPPORTED_VERSION = 2019_10_01_213028 # rubocop:disable Style/NumericLiterals
-    MAX_SUPPORTED_VERSION = 2022_11_04_133904 # rubocop:disable Style/NumericLiterals
+    MIN_SUPPORTED_VERSION = 2019_10_01_213028
+    MAX_SUPPORTED_VERSION = 2022_11_04_133904
 
     # Stubs to enjoy ActiveRecord queries while not depending on a particular
     # version of the code/database
@@ -209,7 +209,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring index_accounts_on_username_and_domain_lower…'
-      if ActiveRecord::Migrator.current_version < 20200620164023 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2020_06_20_164023
         ActiveRecord::Base.connection.add_index :accounts, 'lower (username), lower(domain)', name: 'index_accounts_on_username_and_domain_lower', unique: true
       else
         ActiveRecord::Base.connection.add_index :accounts, "lower (username), COALESCE(lower(domain), '')", name: 'index_accounts_on_username_and_domain_lower', unique: true
@@ -252,7 +252,7 @@ module Mastodon
         end
       end
 
-      if ActiveRecord::Migrator.current_version < 20220118183010 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2022_01_18_183010
         ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users WHERE remember_token IS NOT NULL GROUP BY remember_token HAVING count(*) > 1").each do |row|
           users = User.where(id: row['ids'].split(',')).sort_by(&:updated_at).reverse.drop(1)
           @prompt.warn "Unsetting remember token for those accounts: #{users.map(&:account).map(&:acct).join(', ')}"
@@ -275,9 +275,9 @@ module Mastodon
       @prompt.say 'Restoring users indexes…'
       ActiveRecord::Base.connection.add_index :users, ['confirmation_token'], name: 'index_users_on_confirmation_token', unique: true
       ActiveRecord::Base.connection.add_index :users, ['email'], name: 'index_users_on_email', unique: true
-      ActiveRecord::Base.connection.add_index :users, ['remember_token'], name: 'index_users_on_remember_token', unique: true if ActiveRecord::Migrator.current_version < 20220118183010
+      ActiveRecord::Base.connection.add_index :users, ['remember_token'], name: 'index_users_on_remember_token', unique: true if ActiveRecord::Migrator.current_version < 2022_01_18_183010
 
-      if ActiveRecord::Migrator.current_version < 20220310060641 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2022_03_10_060641
         ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true
       else
         ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true, where: 'reset_password_token IS NOT NULL', opclass: :text_pattern_ops
@@ -340,7 +340,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring conversations indexes…'
-      if ActiveRecord::Migrator.current_version < 20220307083603 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2022_03_07_083603
         ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true
       else
         ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true, where: 'uri IS NOT NULL', opclass: :text_pattern_ops
@@ -457,7 +457,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring media_attachments indexes…'
-      if ActiveRecord::Migrator.current_version < 20220310060626 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2022_03_10_060626
         ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true
       else
         ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true, where: 'shortcode IS NOT NULL', opclass: :text_pattern_ops
@@ -490,7 +490,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring statuses indexes…'
-      if ActiveRecord::Migrator.current_version < 20220310060706 # rubocop:disable Style/NumericLiterals
+      if ActiveRecord::Migrator.current_version < 2022_03_10_060706
         ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true
       else
         ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true, where: 'uri IS NOT NULL', opclass: :text_pattern_ops
@@ -512,7 +512,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring tags indexes…'
-      if ActiveRecord::Migrator.current_version < 20210421121431
+      if ActiveRecord::Migrator.current_version < 2021_04_21_121431
         ActiveRecord::Base.connection.add_index :tags, 'lower((name)::text)', name: 'index_tags_on_name_lower', unique: true
       else
         ActiveRecord::Base.connection.execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower_btree ON tags (lower(name) text_pattern_ops)'
diff --git a/spec/controllers/api/v1/markers_controller_spec.rb b/spec/controllers/api/v1/markers_controller_spec.rb
index ba0f3c32218..64ec18e590e 100644
--- a/spec/controllers/api/v1/markers_controller_spec.rb
+++ b/spec/controllers/api/v1/markers_controller_spec.rb
@@ -42,7 +42,7 @@ RSpec.describe Api::V1::MarkersController, type: :controller do
 
       it 'creates a marker' do
         expect(user.markers.first.timeline).to eq 'home'
-        expect(user.markers.first.last_read_id).to eq 69420
+        expect(user.markers.first.last_read_id).to eq 69_420
       end
     end
 
@@ -58,7 +58,7 @@ RSpec.describe Api::V1::MarkersController, type: :controller do
 
       it 'updates a marker' do
         expect(user.markers.first.timeline).to eq 'home'
-        expect(user.markers.first.last_read_id).to eq 70120
+        expect(user.markers.first.last_read_id).to eq 70_120
       end
     end
   end