diff --git a/requirements.txt b/requirements.txt
index 5f1630a..9516b1d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-flask==1.0.2
+flask==2.3.2
 flask_cas==1.0.0
 flask-sqlalchemy==2.3.2
 flask-wtf==0.14.2