diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index a95f74b..837028f 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (3.3.0)
     ruby_dep (1.5.0)
     safe_yaml (1.0.4)