diff --git a/Gemfile.lock b/Gemfile.lock
index 2385ef4d..6c473764 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -369,7 +369,7 @@ GEM
     turbolinks-source (5.2.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.0)
+    uglifier (4.2.1)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (2.5.0)
     uniform_notifier (1.16.0)