diff --git a/Gemfile.lock b/Gemfile.lock
index cfca607..a23b962 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,7 +34,7 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rdoc (6.3.2)
+    rdoc (6.3.4.1)
     regexp_parser (2.1.1)
     reline (0.2.6)
       io-console (~> 0.5)