diff --git a/04_pred_maintainance/requirements.txt b/04_pred_maintainance/requirements.txt
index c92b70ca..e7011108 100644
--- a/04_pred_maintainance/requirements.txt
+++ b/04_pred_maintainance/requirements.txt
@@ -1,5 +1,5 @@
 Babel==1.3
-Flask==0.10.1
+Flask==1.0
 Flask-Babel==0.9
 Flask-Login==0.2.11
 Flask-Mail==0.9.0