diff --git a/Gemfile.lock b/Gemfile.lock
index df45f12..2d66ee5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rmagick (4.3.0)
     rouge (4.4.0)
     safe_yaml (1.0.5)