diff --git a/Gemfile.lock b/Gemfile.lock
index ec603c9..34965be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,11 +10,9 @@ GEM
       hoe (>= 2.2.0)
     hoe-yard (0.1.2)
       yard (>= 0.2.3.1)
-    json (1.8.1)
     netaddr (1.5.0)
     rake (0.9.6)
-    rdoc (4.0.1)
-      json (~> 1.4)
+    rdoc (6.3.1)
     redcarpet (3.0.0)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)