diff --git a/Gemfile b/Gemfile
index 3e997ea..5fafe05 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,4 +8,5 @@ gem 'time_ext', '>= 0.2.6'
 group :development do
   gem 'rspec', '>= 2.0.1'
   gem 'yard', '>= 0.6.1'
+  gem 'i18n'
 end
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index 3ec2c87..0a8a4bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,6 +3,7 @@ GEM
   specs:
     activesupport (3.0.3)
     diff-lcs (1.1.2)
+    i18n (0.4.2)
     json (1.4.6)
     redis (2.1.1)
     rspec (2.1.0)
@@ -22,6 +23,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (>= 2.3.0)
+  i18n
   json (>= 1.0.0)
   redis (>= 2.0.0)
   rspec (>= 2.0.1)