diff --git a/Python/Py/flask-demo/requirements.txt b/Python/Py/flask-demo/requirements.txt
index 8ca2452c..8a0657f6 100644
--- a/Python/Py/flask-demo/requirements.txt
+++ b/Python/Py/flask-demo/requirements.txt
@@ -1,6 +1,6 @@
 Click==7.0
 Flask==1.0.2
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==3.1.4
 MarkupSafe==1.0
 Werkzeug==0.14.1