diff --git a/demo/requirements.txt b/demo/requirements.txt
index 884f0f9..7d54761 100644
--- a/demo/requirements.txt
+++ b/demo/requirements.txt
@@ -1,5 +1,5 @@
 click==6.7
-Flask==1.0.2
+Flask==2.3.2
 itsdangerous==0.24
 Jinja2>=2.10.1
 MarkupSafe==1.0