diff --git a/Gemfile b/Gemfile
index 86c9283..dc82615 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,4 +2,5 @@
 source "https://rubygems.org"
 
 # gem "rails"
-gem "rspec"
\ No newline at end of file
+gem "rspec"
+gem "rake"
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index 46823cb..83c8f89 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,6 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     diff-lcs (1.2.1)
+    rake (10.0.4)
     rspec (2.13.0)
       rspec-core (~> 2.13.0)
       rspec-expectations (~> 2.13.0)
@@ -15,4 +16,5 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  rake
   rspec