diff --git a/days/001-004-flask-intro/code/requirements.txt b/days/001-004-flask-intro/code/requirements.txt
index 56376ba1..b0d515d1 100644
--- a/days/001-004-flask-intro/code/requirements.txt
+++ b/days/001-004-flask-intro/code/requirements.txt
@@ -4,4 +4,4 @@ itsdangerous==0.24
 Jinja2==2.10
 MarkupSafe==1.0
 python-dotenv==0.9.1
-Werkzeug==0.14.1
+Werkzeug==2.2.3