diff --git a/Gemfile.lock b/Gemfile.lock
index f48b4e9c..69169b33 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -243,7 +243,7 @@ GEM
     puma_worker_killer (0.1.1)
       get_process_mem (~> 0.2)
       puma (>= 2.7, < 5)
-    rack (2.2.2)
+    rack (2.2.3)
     rack-attack (5.4.2)
       rack (>= 1.0, < 3)
     rack-proxy (0.6.5)
diff --git a/NOTICE-ruby b/NOTICE-ruby
index 56028ae4..c7eca296 100644
--- a/NOTICE-ruby
+++ b/NOTICE-ruby
@@ -3281,7 +3281,7 @@ Copyright (c) 2013 Michael Grosser <michael@grosser.it>
 ** parallel_tests; version 2.32.0 -- 
 ** puma_worker_killer; version 0.1.1 -- 
 ** qx; version 0.1.1 -- 
-** rack; version 2.2.2 -- 
+** rack; version 2.2.3 -- 
 Copyright (c) 2009-2018 Michael Fellinger <m.fellinger@gmail.com>
 Copyright (c) Django Software Foundation and individual contributors.
 Copyright (c) 2007-2019 Leah Neukirchen <http://leahneukirchen.org/infopage.html>