diff --git a/example/requirements.txt b/example/requirements.txt
index d1987da..ab6ff5d 100644
--- a/example/requirements.txt
+++ b/example/requirements.txt
@@ -7,7 +7,7 @@ Flask-SocketIO==5.1.1
 idna==3.3
 itsdangerous==2.0.1
 Jinja2==3.1.4
-MarkupSafe==2.0.1
+MarkupSafe==3.0.2
 numpy==1.21.4
 pandas==1.3.4
 python-dateutil==2.8.2