diff --git a/Appraisals b/Appraisals
index 624e33d..a0f3607 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,10 +1,14 @@
-appraise 'rails3.2' do
-  gem 'actionpack', '~> 3.2.0'
-  gem 'activesupport', '~> 3.2.0'
-end
-
 appraise 'rails4.0' do
   gem 'actionpack', '~> 4.0.0'
   gem 'activesupport', '~> 4.0.0'
 end
 
+appraise 'rails4.1' do
+  gem 'actionpack', '~> 4.1.0'
+  gem 'activesupport', '~> 4.1.0'
+end
+
+appraise 'rails4.2' do
+  gem 'actionpack', '~> 4.2.0'
+  gem 'activesupport', '~> 4.2.0'
+end
diff --git a/lib/string_tools/core_ext/string.rb b/lib/string_tools/core_ext/string.rb
index 3c08074..d514d3f 100644
--- a/lib/string_tools/core_ext/string.rb
+++ b/lib/string_tools/core_ext/string.rb
@@ -4,6 +4,7 @@
 require 'active_support/version'
 require 'action_pack'
 require 'string_tools/string'
+require 'action_controller'
 
 class String
   %w[auto_link excerpt highlight sanitize simple_format word_wrap].each do |method|
diff --git a/spec/string_spec.rb b/spec/string_spec.rb
index 741caad..731c21f 100644
--- a/spec/string_spec.rb
+++ b/spec/string_spec.rb
@@ -28,4 +28,23 @@
 
     it { expect { string.remove_nonprintable! }.to change { string }.to('string with weird characters') }
   end
+
+  describe '#strip_tags' do
+    {
+      'some<dev>text</dev>' => 'sometext',
+      'some<a href="link">text</a>' => 'sometext',
+      '1 & 2 + 3 < 5 > 6' => '1 & 2 + 3 < 5 > 6',
+      '<<li>text</li>' => '<text',
+      'some<!-- comment -->text' => 'sometext',
+      'some<ul>text' => 'sometext',
+      'some<script>text</script>' => 'sometext',
+      'some<!-- comment' => 'some<-- comment',
+      '<h1 style="coller:red">>text</h1>>' => '>text>',
+      " <ul>list<li>text</li>\n  <li>text2</li> " => " listtext\n  text2 "
+    }.each do |example_string, result|
+      context "when string '#{example_string}'" do
+        it { expect(example_string.dup.strip_tags).to eq result }
+      end
+    end
+  end
 end