diff --git a/docker-flask-mariadb-todo-list-from-scratch/docker/demo_webservice/requirements.txt b/docker-flask-mariadb-todo-list-from-scratch/docker/demo_webservice/requirements.txt
index 0f74cb3..96715c7 100644
--- a/docker-flask-mariadb-todo-list-from-scratch/docker/demo_webservice/requirements.txt
+++ b/docker-flask-mariadb-todo-list-from-scratch/docker/demo_webservice/requirements.txt
@@ -5,6 +5,6 @@ Jinja2==2.10.1
 MarkupSafe==1.1.1
 mysqlclient==1.4.2.post1
 six==1.12.0
-Werkzeug==0.15.4
+Werkzeug==0.15.5
 WTForms==2.2.1
 WTForms-JSON==0.3.3