diff --git a/.rubocop.yml b/.rubocop.yml
index 64c7add..30ac7aa 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -35,10 +35,6 @@ Lint/DuplicateBranch:
 Style/NegatedIf:
   Enabled: false
 
-# Disabling for now until it's clearer why we want this
-Style/FrozenStringLiteralComment:
-  Enabled: false
-
 # It's nice to be able to read the condition first before reading the code within the condition
 Style/GuardClause:
   Enabled: false
diff --git a/Gemfile b/Gemfile
index 79c8851..0961f6e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in modularization_tools.gemspec
diff --git a/Rakefile b/Rakefile
index 806deab..088722c 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,5 @@
 # typed: ignore
+# frozen_string_literal: true
 
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
diff --git a/lib/parse_packwerk.rb b/lib/parse_packwerk.rb
index bca4329..47e759c 100644
--- a/lib/parse_packwerk.rb
+++ b/lib/parse_packwerk.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 require 'sorbet-runtime'
 require 'yaml'
diff --git a/lib/parse_packwerk/configuration.rb b/lib/parse_packwerk/configuration.rb
index e288421..4c0d922 100644
--- a/lib/parse_packwerk/configuration.rb
+++ b/lib/parse_packwerk/configuration.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
   class Configuration < T::Struct
diff --git a/lib/parse_packwerk/constants.rb b/lib/parse_packwerk/constants.rb
index 5504db5..c3f5038 100644
--- a/lib/parse_packwerk/constants.rb
+++ b/lib/parse_packwerk/constants.rb
@@ -1,18 +1,19 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
-  ROOT_PACKAGE_NAME = T.let('.'.freeze, String)
-  PACKAGE_YML_NAME = T.let('package.yml'.freeze, String)
-  PACKWERK_YML_NAME = T.let('packwerk.yml'.freeze, String)
-  PACKAGE_TODO_YML_NAME = T.let('package_todo.yml'.freeze, String)
-  ENFORCE_DEPENDENCIES = T.let('enforce_dependencies'.freeze, String)
-  ENFORCE_PRIVACY = T.let('enforce_privacy'.freeze, String)
-  ENFORCE_LAYERS = T.let('enforce_layers'.freeze, String)
-  DEPENDENCY_VIOLATION_TYPE = T.let('dependency'.freeze, String)
-  PRIVACY_VIOLATION_TYPE = T.let('privacy'.freeze, String)
-  PUBLIC_PATH = T.let('public_path'.freeze, String)
-  METADATA = T.let('metadata'.freeze, String)
-  DEPENDENCIES = T.let('dependencies'.freeze, String)
+  ROOT_PACKAGE_NAME = T.let('.', String)
+  PACKAGE_YML_NAME = T.let('package.yml', String)
+  PACKWERK_YML_NAME = T.let('packwerk.yml', String)
+  PACKAGE_TODO_YML_NAME = T.let('package_todo.yml', String)
+  ENFORCE_DEPENDENCIES = T.let('enforce_dependencies', String)
+  ENFORCE_PRIVACY = T.let('enforce_privacy', String)
+  ENFORCE_LAYERS = T.let('enforce_layers', String)
+  DEPENDENCY_VIOLATION_TYPE = T.let('dependency', String)
+  PRIVACY_VIOLATION_TYPE = T.let('privacy', String)
+  PUBLIC_PATH = T.let('public_path', String)
+  METADATA = T.let('metadata', String)
+  DEPENDENCIES = T.let('dependencies', String)
 
   # Since this metadata is unstructured YAML, it could be any type. We leave it to clients of `ParsePackwerk::Package`
   # to add types based on their known usage of metadata.
diff --git a/lib/parse_packwerk/extensions.rb b/lib/parse_packwerk/extensions.rb
index adc57ae..4c8c4fc 100644
--- a/lib/parse_packwerk/extensions.rb
+++ b/lib/parse_packwerk/extensions.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
   module Extensions
diff --git a/lib/parse_packwerk/package.rb b/lib/parse_packwerk/package.rb
index c40b1c0..a97278d 100644
--- a/lib/parse_packwerk/package.rb
+++ b/lib/parse_packwerk/package.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
   class Package < T::Struct
diff --git a/lib/parse_packwerk/package_todo.rb b/lib/parse_packwerk/package_todo.rb
index 59eb4cf..b70ae72 100644
--- a/lib/parse_packwerk/package_todo.rb
+++ b/lib/parse_packwerk/package_todo.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
   class PackageTodo < T::Struct
diff --git a/lib/parse_packwerk/violation.rb b/lib/parse_packwerk/violation.rb
index 247e216..57a8965 100644
--- a/lib/parse_packwerk/violation.rb
+++ b/lib/parse_packwerk/violation.rb
@@ -1,4 +1,5 @@
 # typed: strict
+# frozen_string_literal: true
 
 module ParsePackwerk
   class Violation < T::Struct
diff --git a/parse_packwerk.gemspec b/parse_packwerk.gemspec
index c3b81b2..98fa3e5 100644
--- a/parse_packwerk.gemspec
+++ b/parse_packwerk.gemspec
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Gem::Specification.new do |spec|
   spec.name          = 'parse_packwerk'
   spec.version       = '0.27.0'
diff --git a/spec/support/have_matching_package.rb b/spec/support/have_matching_package.rb
index 8944fc3..1a4950b 100644
--- a/spec/support/have_matching_package.rb
+++ b/spec/support/have_matching_package.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 RSpec::Matchers.define(:have_matching_package) do |expected_package, expected_package_todo|
   match do |actual_packages|
     @actual_packages = actual_packages