diff --git a/environment.rb b/environment.rb
index 1c126752..2d1db38c 100644
--- a/environment.rb
+++ b/environment.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 RubyVM::YJIT.enable
 ENV['RACK_ENV'] ||= 'development'
 ENV['TZ'] = 'UTC'
diff --git a/models/event.rb b/models/event.rb
index 88122284..d7aee461 100644
--- a/models/event.rb
+++ b/models/event.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Event < Sequel::Model
   include Sequel::ParanoidDelete
 
diff --git a/models/site.rb b/models/site.rb
index 782515bd..211253d9 100644
--- a/models/site.rb
+++ b/models/site.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'tilt'
 require 'rss'
 require 'nokogiri'
@@ -144,7 +145,7 @@ class Site < Sequel::Model
   BLOCK_JERK_PERCENTAGE = 30
   BLOCK_JERK_THRESHOLD = 25
   MAXIMUM_TAGS = 5
-  MAX_USERNAME_LENGTH = 32.freeze
+  MAX_USERNAME_LENGTH = 32
 
   LEGACY_SUPPORTER_PRICES = {
     plan_one: 1,
diff --git a/models/site_change.rb b/models/site_change.rb
index facf8cfe..5f293ae5 100644
--- a/models/site_change.rb
+++ b/models/site_change.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class SiteChange < Sequel::Model
   NEW_CHANGE_TIMEOUT = 3600 * 24 # 24 hours
   many_to_one :site
diff --git a/models/site_file.rb b/models/site_file.rb
index 8e65ba43..40876358 100644
--- a/models/site_file.rb
+++ b/models/site_file.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'sanitize'
 
 class SiteFile < Sequel::Model
-  CLASSIFIER_LIMIT = 1_000_000.freeze
-  CLASSIFIER_WORD_LIMIT = 25.freeze
+  CLASSIFIER_LIMIT = 1_000_000
+  CLASSIFIER_WORD_LIMIT = 25
   unrestrict_primary_key
   plugin :update_primary_key
   many_to_one :site
diff --git a/models/stat.rb b/models/stat.rb
index 8f5d2563..3cc0d80a 100644
--- a/models/stat.rb
+++ b/models/stat.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'resolv'
 require 'zlib'
 
diff --git a/models/stat_location.rb b/models/stat_location.rb
index f1a8e863..6648f83f 100644
--- a/models/stat_location.rb
+++ b/models/stat_location.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'geoip'
 
 class StatLocation < Sequel::Model
diff --git a/models/stat_path.rb b/models/stat_path.rb
index 8dcd6308..ff919cf1 100644
--- a/models/stat_path.rb
+++ b/models/stat_path.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class StatPath < Sequel::Model
   RETAINMENT_DAYS = 7
 
diff --git a/models/stat_referrer.rb b/models/stat_referrer.rb
index edeb52c8..fbefb2e8 100644
--- a/models/stat_referrer.rb
+++ b/models/stat_referrer.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class StatReferrer < Sequel::Model
   many_to_one :site
   RETAINMENT_DAYS = 7
diff --git a/models/tag.rb b/models/tag.rb
index 33750feb..37348477 100644
--- a/models/tag.rb
+++ b/models/tag.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Tag < Sequel::Model
 	NAME_LENGTH_MAX = 25
 	NAME_WORDS_MAX = 1