Rakefile in simple_captcha2-0.4.0 vs Rakefile in simple_captcha2-0.4.2

@@ -13,11 +13,11 @@
   rdoc.rdoc_files.include('README.rdoc')
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
 APP_RAKEFILE = File.expand_path("../test/dummy/Rakefile", __FILE__)
-if File.exists? APP_RAKEFILE
+if File.exist? APP_RAKEFILE
   load 'rails/tasks/engine.rake'
 end
 
 namespace :dummy do
   desc 'Setup dummy Rails app for test purpose'
@@ -28,10 +28,10 @@
     SimpleCaptcha::DummyGenerator.start %w(--quiet)
   end
 
   desc 'destroy dummy Rails app under test/dummy'
   task :destroy do
-    FileUtils.rm_rf "test/dummy" if File.exists?("test/dummy")
+    FileUtils.rm_rf "test/dummy" if File.exist?("test/dummy")
   end
 
   desc 'redo'
   task :redo do
     sh 'rake dummy:destroy'