diff --git a/demo/requirements.txt b/demo/requirements.txt
index fe7d1fa..686a2d1 100644
--- a/demo/requirements.txt
+++ b/demo/requirements.txt
@@ -1,4 +1,4 @@
-flask==1.0.2
+flask==3.1.3
 pymysql==0.9.2
 flask_sqlalchemy==2.3.2
 flask_bootstrap==3.3.7.1
\ No newline at end of file