diff --git a/lib/guard/konacha-rails/runner.rb b/lib/guard/konacha-rails/runner.rb
index 6d34a8e..12aebeb 100644
--- a/lib/guard/konacha-rails/runner.rb
+++ b/lib/guard/konacha-rails/runner.rb
@@ -36,7 +36,7 @@ def run(paths = [''])
         formatter.reset
 
         paths.each do |path|
-          if path.empty? or File.exists? real_path path
+          if path.empty? or File.exist? real_path path
             UI.info "Guard::KonachaRails running #{specs_description(path)}"
             runner.run konacha_path(path)
           end
diff --git a/spec/dummy/config/boot.rb b/spec/dummy/config/boot.rb
index e6186ea..96ae890 100644
--- a/spec/dummy/config/boot.rb
+++ b/spec/dummy/config/boot.rb
@@ -3,4 +3,4 @@
 # Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
diff --git a/spec/guard/konacha-rails/rails/runner_spec.rb b/spec/guard/konacha-rails/rails/runner_spec.rb
index 0779415..d29feeb 100644
--- a/spec/guard/konacha-rails/rails/runner_spec.rb
+++ b/spec/guard/konacha-rails/rails/runner_spec.rb
@@ -50,7 +50,7 @@
     end
 
     it 'should run each path through runner and format results' do
-      allow(File).to receive(:exists?) { true }
+      allow(File).to receive(:exist?) { true }
       allow(runner).to receive(:formatter) { konacha_formatter }
       expect(konacha_formatter).to receive(:reset)
       expect(konacha_runner).to receive(:run).with('/1')
@@ -61,8 +61,8 @@
     end
 
     it 'should run each path with a valid extension' do
-      expect(File).to receive(:exists?).with(::Rails.root.join('spec/javascripts/1.js').to_s).and_return(true)
-      expect(File).to receive(:exists?).with(::Rails.root.join('spec/javascripts/foo/bar.js.coffee').to_s).and_return(true)
+      expect(File).to receive(:exist?).with(::Rails.root.join('spec/javascripts/1.js').to_s).and_return(true)
+      expect(File).to receive(:exist?).with(::Rails.root.join('spec/javascripts/foo/bar.js.coffee').to_s).and_return(true)
       expect(konacha_runner).to receive(:run).with('/1')
       expect(konacha_runner).to receive(:run).with('/foo/bar')