diff --git a/lti/lti-hello/requirements.txt b/lti/lti-hello/requirements.txt
index c48b713..21c5572 100644
--- a/lti/lti-hello/requirements.txt
+++ b/lti/lti-hello/requirements.txt
@@ -17,4 +17,4 @@ pycparser==2.19
 PyLTI==0.4.1
 pyOpenSSL==19.0.0
 six==1.12.0
-Werkzeug==0.15.4
+Werkzeug==2.2.3