diff --git a/Gemfile.lock b/Gemfile.lock
index d13c88e..6eef716 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
     i18n (0.6.0)
     mocha (0.9.12)
     rake (0.9.2.2)
-    rdoc (3.6.1)
+    rdoc (6.3.2)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)
       rspec-expectations (~> 2.6.0)