diff --git a/Gemfile.lock b/Gemfile.lock
index db5aceb218..71c7bf67aa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,7 @@ GEM
     json (2.7.1)
     kramdown (2.4.0)
       rexml
-    listen (3.8.0)
+    listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     map (6.6.0)