diff --git a/requirements.txt b/requirements.txt
index 0b30198..867702b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ freezegun==0.3.9
 # License: BSD
 # Upstream url: http://werkzeug.pocoo.org/
 # Required by: Flask
-Werkzeug==0.9.4
+Werkzeug==2.3.8
 
 python-dateutil==2.4.2