diff --git a/Gemfile.lock b/Gemfile.lock
index 2b4378a..0eb4142 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.4)
+    rexml (3.3.9)
     rouge (3.23.0)
     rubyzip (2.3.0)
     safe_yaml (1.0.5)