diff --git a/Gemfile.lock b/Gemfile.lock
index 0e8967a..9ddf5b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,6 @@ GEM
       git (>= 1.2.5)
       rake
       rdoc
-    json (1.7.3)
     mechanize (2.5.1)
       domain_name (~> 0.5, >= 0.5.1)
       mime-types (~> 1.17, >= 1.17.2)
@@ -31,8 +30,7 @@ GEM
     nokogiri (1.5.2)
     ntlm-http (0.1.1)
     rake (0.9.2.2)
-    rdoc (3.12)
-      json (~> 1.4)
+    rdoc (6.2.1)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     rspec (2.10.0)