diff --git a/requirements.txt b/requirements.txt
index cbda1a2..c7faea3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ Flask==2.0.2
 
 # may need to specify exact version to avoid bugs/conflicts
 # previous: werkzeug==0.16.1
-werkzeug==2.0.2
+werkzeug==2.2.3
 
 # Application server for both development and production.
 gunicorn==20.1.0