diff --git a/Gemfile.lock b/Gemfile.lock
index 1e11c6c..a95b4c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -158,7 +158,7 @@ GEM
     launchy (2.4.3)
       addressable (~> 2.3)
     libv8 (3.16.14.13)
-    listen (3.0.3)
+    listen (3.0.4)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     loofah (2.0.3)