diff --git a/Gemfile b/Gemfile
index f61ca9a..fb28dfb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -31,6 +31,7 @@ platform :ruby do
 end
 
 gem 'ri_cal'
+gem 'json', '~> 1.4.6'
 
 group :development, :test do
   gem 'rspec-rails', '~> 2.6'
diff --git a/Gemfile.lock b/Gemfile.lock
index 855cf4f..2aadb81 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
       has_scope (~> 0.5.0)
       responders (~> 0.6)
     journey (1.0.3)
-    json (1.7.1)
+    json (1.4.6)
     kaminari (0.13.0)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -221,6 +221,7 @@ DEPENDENCIES
   hoptoad_notifier (~> 2.4)
   htmlentities (~> 4.3.0)
   inherited_resources
+  json (~> 1.4.6)
   kaminari
   lighthouse-api
   mongo (= 1.3.1)
--
libgit2 0.21.2