diff --git a/kaminari-core/kaminari-core.gemspec b/kaminari-core/kaminari-core.gemspec
index 9c95bb3..3949433 100644
--- a/kaminari-core/kaminari-core.gemspec
+++ b/kaminari-core/kaminari-core.gemspec
@@ -1,4 +1,5 @@
 # coding: utf-8
+# frozen_string_literal: true
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'kaminari/core/version'
diff --git a/kaminari-core/lib/generators/kaminari/config_generator.rb b/kaminari-core/lib/generators/kaminari/config_generator.rb
index e6b0041..5148412 100644
--- a/kaminari-core/lib/generators/kaminari/config_generator.rb
+++ b/kaminari-core/lib/generators/kaminari/config_generator.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module Generators
     class ConfigGenerator < Rails::Generators::Base
diff --git a/kaminari-core/lib/generators/kaminari/templates/kaminari_config.rb b/kaminari-core/lib/generators/kaminari/templates/kaminari_config.rb
index 95eebf2..c808667 100644
--- a/kaminari-core/lib/generators/kaminari/templates/kaminari_config.rb
+++ b/kaminari-core/lib/generators/kaminari/templates/kaminari_config.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 Kaminari.configure do |config|
   # config.default_per_page = 25
   # config.max_per_page = nil
diff --git a/kaminari-core/lib/generators/kaminari/views_generator.rb b/kaminari-core/lib/generators/kaminari/views_generator.rb
index 0e7b603..9f7ae96 100644
--- a/kaminari-core/lib/generators/kaminari/views_generator.rb
+++ b/kaminari-core/lib/generators/kaminari/views_generator.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module Generators
 
diff --git a/kaminari-core/lib/kaminari/config.rb b/kaminari-core/lib/kaminari/config.rb
index 6677427..3a8b613 100644
--- a/kaminari-core/lib/kaminari/config.rb
+++ b/kaminari-core/lib/kaminari/config.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'active_support/configurable'
 
 module Kaminari
diff --git a/kaminari-core/lib/kaminari/core.rb b/kaminari-core/lib/kaminari/core.rb
index cbb39ec..1b7cc97 100644
--- a/kaminari-core/lib/kaminari/core.rb
+++ b/kaminari-core/lib/kaminari/core.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
 end
 
diff --git a/kaminari-core/lib/kaminari/core/version.rb b/kaminari-core/lib/kaminari/core/version.rb
index c3bf600..0d14527 100644
--- a/kaminari-core/lib/kaminari/core/version.rb
+++ b/kaminari-core/lib/kaminari/core/version.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module Core
     VERSION = "0.1.0"
diff --git a/kaminari-core/lib/kaminari/engine.rb b/kaminari-core/lib/kaminari/engine.rb
index d4fe847..badc40c 100644
--- a/kaminari-core/lib/kaminari/engine.rb
+++ b/kaminari-core/lib/kaminari/engine.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari #:nodoc:
   class Engine < ::Rails::Engine #:nodoc:
   end
diff --git a/kaminari-core/lib/kaminari/exceptions.rb b/kaminari-core/lib/kaminari/exceptions.rb
index 4987db5..02db120 100644
--- a/kaminari-core/lib/kaminari/exceptions.rb
+++ b/kaminari-core/lib/kaminari/exceptions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   class ZeroPerPageOperation < ZeroDivisionError; end
 end
diff --git a/kaminari-core/lib/kaminari/helpers/paginator.rb b/kaminari-core/lib/kaminari/helpers/paginator.rb
index d22b85e..b0e6e50 100644
--- a/kaminari-core/lib/kaminari/helpers/paginator.rb
+++ b/kaminari-core/lib/kaminari/helpers/paginator.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'active_support/inflector'
 require 'kaminari/helpers/tags'
 
diff --git a/kaminari-core/lib/kaminari/helpers/tags.rb b/kaminari-core/lib/kaminari/helpers/tags.rb
index f8d7520..984fd96 100644
--- a/kaminari-core/lib/kaminari/helpers/tags.rb
+++ b/kaminari-core/lib/kaminari/helpers/tags.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module Helpers
     PARAM_KEY_BLACKLIST = :authenticity_token, :commit, :utf8, :_method, :script_name
diff --git a/kaminari-core/lib/kaminari/models/array_extension.rb b/kaminari-core/lib/kaminari/models/array_extension.rb
index 8b8fbbc..707fba6 100644
--- a/kaminari-core/lib/kaminari/models/array_extension.rb
+++ b/kaminari-core/lib/kaminari/models/array_extension.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'active_support/core_ext/module'
 module Kaminari
   # Kind of Array that can paginate
diff --git a/kaminari-core/lib/kaminari/models/configuration_methods.rb b/kaminari-core/lib/kaminari/models/configuration_methods.rb
index 747b4bf..0ca4c2b 100644
--- a/kaminari-core/lib/kaminari/models/configuration_methods.rb
+++ b/kaminari-core/lib/kaminari/models/configuration_methods.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module ConfigurationMethods
     extend ActiveSupport::Concern
diff --git a/kaminari-core/lib/kaminari/models/page_scope_methods.rb b/kaminari-core/lib/kaminari/models/page_scope_methods.rb
index 79dcba2..a0fd899 100644
--- a/kaminari-core/lib/kaminari/models/page_scope_methods.rb
+++ b/kaminari-core/lib/kaminari/models/page_scope_methods.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module PageScopeMethods
     # Specify the <tt>per_page</tt> value for the preceding <tt>page</tt> scope
diff --git a/kaminari-core/lib/kaminari/railtie.rb b/kaminari-core/lib/kaminari/railtie.rb
index 447c778..793d854 100644
--- a/kaminari-core/lib/kaminari/railtie.rb
+++ b/kaminari-core/lib/kaminari/railtie.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   class Railtie < ::Rails::Railtie #:nodoc:
     # Doesn't actually do anything. Just keeping this hook point, mainly for compatibility
diff --git a/kaminari-core/spec/config/config_spec.rb b/kaminari-core/spec/config/config_spec.rb
index 1fa5e62..9a417ab 100644
--- a/kaminari-core/spec/config/config_spec.rb
+++ b/kaminari-core/spec/config/config_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe Kaminari::Configuration do
diff --git a/kaminari-core/spec/fake_app/active_record/config.rb b/kaminari-core/spec/fake_app/active_record/config.rb
index 7176b33..7921dda 100644
--- a/kaminari-core/spec/fake_app/active_record/config.rb
+++ b/kaminari-core/spec/fake_app/active_record/config.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # database
 ActiveRecord::Base.configurations = {'test' => {:adapter => 'sqlite3', :database => ':memory:'}}
 ActiveRecord::Base.establish_connection :test
diff --git a/kaminari-core/spec/fake_app/active_record/models.rb b/kaminari-core/spec/fake_app/active_record/models.rb
index 988416f..9f342f2 100644
--- a/kaminari-core/spec/fake_app/active_record/models.rb
+++ b/kaminari-core/spec/fake_app/active_record/models.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # models
 class User < ActiveRecord::Base
   has_many :authorships
diff --git a/kaminari-core/spec/fake_app/rails_app.rb b/kaminari-core/spec/fake_app/rails_app.rb
index b54dde4..9844bb5 100644
--- a/kaminari-core/spec/fake_app/rails_app.rb
+++ b/kaminari-core/spec/fake_app/rails_app.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # require 'rails/all'
 require 'action_controller/railtie'
 require 'action_view/railtie'
diff --git a/kaminari-core/spec/fake_gem.rb b/kaminari-core/spec/fake_gem.rb
index 78e9991..03e3010 100644
--- a/kaminari-core/spec/fake_gem.rb
+++ b/kaminari-core/spec/fake_gem.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Kaminari
   module FakeGem
     extend ActiveSupport::Concern
diff --git a/kaminari-core/spec/generators/views_generator_spec.rb b/kaminari-core/spec/generators/views_generator_spec.rb
index da1ca3c..a40b09d 100644
--- a/kaminari-core/spec/generators/views_generator_spec.rb
+++ b/kaminari-core/spec/generators/views_generator_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 if defined?(::Rails::Railtie)
diff --git a/kaminari-core/spec/helpers/action_view_extension_spec.rb b/kaminari-core/spec/helpers/action_view_extension_spec.rb
index 41a53c1..d1b714c 100644
--- a/kaminari-core/spec/helpers/action_view_extension_spec.rb
+++ b/kaminari-core/spec/helpers/action_view_extension_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe 'Kaminari::ActionViewExtension', :if => defined?(::Rails::Railtie) && defined?(::ActionView) do
diff --git a/kaminari-core/spec/helpers/helpers_spec.rb b/kaminari-core/spec/helpers/helpers_spec.rb
index 15e6bc9..5fe5b40 100644
--- a/kaminari-core/spec/helpers/helpers_spec.rb
+++ b/kaminari-core/spec/helpers/helpers_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 include Kaminari::Helpers
 
diff --git a/kaminari-core/spec/helpers/tags_spec.rb b/kaminari-core/spec/helpers/tags_spec.rb
index 6092788..72e0838 100644
--- a/kaminari-core/spec/helpers/tags_spec.rb
+++ b/kaminari-core/spec/helpers/tags_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 include Kaminari::Helpers
 
diff --git a/kaminari-core/spec/models/active_record/active_record_relation_methods_spec.rb b/kaminari-core/spec/models/active_record/active_record_relation_methods_spec.rb
index 93e425b..2147251 100644
--- a/kaminari-core/spec/models/active_record/active_record_relation_methods_spec.rb
+++ b/kaminari-core/spec/models/active_record/active_record_relation_methods_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 if defined? ActiveRecord
diff --git a/kaminari-core/spec/models/active_record/inherited_spec.rb b/kaminari-core/spec/models/active_record/inherited_spec.rb
index c1c66f9..a221a9f 100644
--- a/kaminari-core/spec/models/active_record/inherited_spec.rb
+++ b/kaminari-core/spec/models/active_record/inherited_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 if defined? ActiveRecord
diff --git a/kaminari-core/spec/models/active_record/scopes_spec.rb b/kaminari-core/spec/models/active_record/scopes_spec.rb
index 81e9298..240adfa 100644
--- a/kaminari-core/spec/models/active_record/scopes_spec.rb
+++ b/kaminari-core/spec/models/active_record/scopes_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 if defined? ActiveRecord
diff --git a/kaminari-core/spec/models/array_spec.rb b/kaminari-core/spec/models/array_spec.rb
index bf9062e..c266ab3 100644
--- a/kaminari-core/spec/models/array_spec.rb
+++ b/kaminari-core/spec/models/array_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe Kaminari::PaginatableArray do
diff --git a/kaminari-core/spec/models/configuration_methods_spec.rb b/kaminari-core/spec/models/configuration_methods_spec.rb
index 78c69ac..d2c7574 100644
--- a/kaminari-core/spec/models/configuration_methods_spec.rb
+++ b/kaminari-core/spec/models/configuration_methods_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe "configuration methods" do
diff --git a/kaminari-core/spec/requests/users_spec.rb b/kaminari-core/spec/requests/users_spec.rb
index d80f71f..c1f874e 100644
--- a/kaminari-core/spec/requests/users_spec.rb
+++ b/kaminari-core/spec/requests/users_spec.rb
@@ -1,4 +1,5 @@
 # encoding: UTF-8
+# frozen_string_literal: true
 require 'spec_helper'
 
 feature 'Users' do
diff --git a/kaminari-core/spec/support/database_cleaner.rb b/kaminari-core/spec/support/database_cleaner.rb
index e87cd72..0c8e65b 100644
--- a/kaminari-core/spec/support/database_cleaner.rb
+++ b/kaminari-core/spec/support/database_cleaner.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 DatabaseCleaner[:active_record].strategy = :transaction if defined? ActiveRecord
 
 RSpec.configure do |config|
diff --git a/kaminari-core/spec/support/matchers.rb b/kaminari-core/spec/support/matchers.rb
index a10374f..e30f191 100644
--- a/kaminari-core/spec/support/matchers.rb
+++ b/kaminari-core/spec/support/matchers.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 RSpec::Matchers.define :contain_tag do |klass|
   match do |collection|
     if @num.blank?