diff --git a/actionpack/test/controller/action_pack_assertions_test.rb b/actionpack/test/controller/action_pack_assertions_test.rb
index eb9faa78a9..d541e577cf 100644
--- a/actionpack/test/controller/action_pack_assertions_test.rb
+++ b/actionpack/test/controller/action_pack_assertions_test.rb
@@ -1,5 +1,4 @@
 require 'abstract_unit'
-require 'action_view/vendor/html-scanner'
 require 'controller/fake_controllers'
 
 class ActionPackAssertionsController < ActionController::Base
diff --git a/actionpack/test/controller/integration_test.rb b/actionpack/test/controller/integration_test.rb
index e03580cc6d..f509426040 100644
--- a/actionpack/test/controller/integration_test.rb
+++ b/actionpack/test/controller/integration_test.rb
@@ -1,6 +1,5 @@
 require 'abstract_unit'
 require 'controller/fake_controllers'
-require 'action_view/vendor/html-scanner'
 
 class SessionTest < ActiveSupport::TestCase
   StubApp = lambda { |env|
diff --git a/actionview/lib/action_view/vendor/html-scanner.rb b/actionview/lib/action_view/vendor/html-scanner.rb
index 775b827529..d26ce6012c 100644
--- a/actionview/lib/action_view/vendor/html-scanner.rb
+++ b/actionview/lib/action_view/vendor/html-scanner.rb
@@ -1,5 +1,8 @@
+require 'active_support/deprecation'
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/html-scanner"
 
+ActiveSupport::Deprecation.warn("html-scanner has been deprecated in favor of using Loofah in SanitizeHelper and ActionView::Assertions.")
+
 module HTML
   extend ActiveSupport::Autoload