diff --git a/Gemfile.lock b/Gemfile.lock
index 250e1a2..acf4227 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,7 +63,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.6)
+    rexml (3.3.9)
     rouge (4.1.3)
     safe_yaml (1.0.5)
     sass-embedded (1.66.1)