diff --git a/nginx-flask-mysql/backend/requirements.txt b/nginx-flask-mysql/backend/requirements.txt
index 924a5fd..9ac119a 100755
--- a/nginx-flask-mysql/backend/requirements.txt
+++ b/nginx-flask-mysql/backend/requirements.txt
@@ -1,2 +1,3 @@
 Flask==2.0.1
+Werkzeug==2.2.2
 mysql-connector==2.2.9