diff --git a/python/obt_web/requirements.txt b/python/obt_web/requirements.txt
index e2dd2c6a6e..5054073792 100644
--- a/python/obt_web/requirements.txt
+++ b/python/obt_web/requirements.txt
@@ -5,7 +5,7 @@ Flask==2.0.1
 Flask-SocketIO==5.1.0
 importlib-metadata==4.6.1
 itsdangerous==2.0.1
-Jinja2==3.0.1
+Jinja2==3.1.5
 MarkupSafe==2.0.1
 numpy
 pkg-resources==0.0.0