diff --git a/requirements.txt b/requirements.txt
index c2eb3ef..71a9962 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 azure-storage-blob==1.5.0
-flask==1.0.2
+flask==1.1.1
 flask_httpauth==3.2.4
 gunicorn==19.9.0
 keras==2.2.4