diff --git a/9.flask-auth/requirements.txt b/9.flask-auth/requirements.txt
index 5378e7f..72e4b97 100644
--- a/9.flask-auth/requirements.txt
+++ b/9.flask-auth/requirements.txt
@@ -1,5 +1,5 @@
 click==6.7
-Flask==0.12.2
+Flask==1.0
 Flask-HTTPAuth==3.2.3
 Flask-SQLAlchemy==2.2
 itsdangerous==0.24