diff --git a/README.rdoc b/README.rdoc
index 292aa8c..b25024b 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -1,13 +1,13 @@
 = EasyCaptcha
-A simple captcha implementation for rails 3 based on rmagick
+A simple captcha implementation for rails based on rmagick.
 
-Tested with Rails 3.2.8
+It is a fork with rails 5 support.
 
 https://travis-ci.org/phatworx/easy_captcha.png
 
 == Installation
 add to Gemfile
-  gem 'easy_captcha'
+  gem 'easy_captcha', github: 'kopylovvlad/easy_captcha'
   gem 'rmagick'
 
 for java you can use
diff --git a/lib/easy_captcha/captcha_controller.rb b/lib/easy_captcha/captcha_controller.rb
index fe42daa..008be64 100644
--- a/lib/easy_captcha/captcha_controller.rb
+++ b/lib/easy_captcha/captcha_controller.rb
@@ -1,7 +1,7 @@
 module EasyCaptcha
   # captcha controller
   class CaptchaController < ActionController::Base
-    before_filter :overwrite_cache_control
+    before_action :overwrite_cache_control
     # captcha action send the generated image to browser
     def captcha
       if params[:format] == "wav" and EasyCaptcha.espeak?
diff --git a/lib/easy_captcha/generator/default.rb b/lib/easy_captcha/generator/default.rb
index 768edaf..8a82ddb 100644
--- a/lib/easy_captcha/generator/default.rb
+++ b/lib/easy_captcha/generator/default.rb
@@ -61,7 +61,7 @@ def generate(code)
         require 'rmagick' unless defined?(Magick)
 
         config = self
-        canvas = Magick::Image.new(EasyCaptcha.image_width, EasyCaptcha.image_height) do |variable|
+        canvas = Magick::Image.new(EasyCaptcha.image_width, EasyCaptcha.image_height) do
           self.background_color = config.image_background_color unless config.image_background_color.nil?
           self.background_color = 'none' if config.background_image.present?
         end
diff --git a/lib/easy_captcha/routes.rb b/lib/easy_captcha/routes.rb
index 46933d0..5ea31d8 100644
--- a/lib/easy_captcha/routes.rb
+++ b/lib/easy_captcha/routes.rb
@@ -3,8 +3,8 @@ module Routing #:nodoc:
     class Mapper #:nodoc:
       # call to add default captcha root
       def captcha_route
-        match 'captcha' => 'easy_captcha/captcha#captcha', :via => :get
+        get '/captcha' => 'easy_captcha/captcha#captcha'
       end
     end
   end
-end
\ No newline at end of file
+end