diff --git a/requirements-dev.txt b/requirements-dev.txt
index 81d6dfb62..d35e4a60a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -157,7 +157,7 @@ urllib3==1.26.20
     #   -c requirements.txt
     #   django-anymail
     #   requests
-werkzeug==3.0.6
+werkzeug==3.1.5
     # via -r requirements-dev.in
 wheel==0.44.0
     # via pip-tools