diff --git a/play-with-docker/Portus/Gemfile.lock b/play-with-docker/Portus/Gemfile.lock
index c1235180e..d547c87e8 100644
--- a/play-with-docker/Portus/Gemfile.lock
+++ b/play-with-docker/Portus/Gemfile.lock
@@ -190,7 +190,7 @@ GEM
     multipart-post (2.0.0)
     mysql2 (0.3.18)
     nenv (0.3.0)
-    net-ldap (0.11)
+    net-ldap (0.16.2)
     nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     notiffany (0.0.8)