diff --git a/Gemfile.lock b/Gemfile.lock
index d4205b1..77b199e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,10 @@ GEM
       bundler (~> 1.0)
       git (>= 1.2.5)
       rake
+    json (1.8.6)
     rake (0.9.1)
-    rdoc (3.6.1)
+    rdoc (3.12.1)
+      json (~> 1.4)
 
 PLATFORMS
   ruby