diff --git a/requirements.txt b/requirements.txt
index 7774d36..a65e98a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 click==6.6
 defusedxml==0.4.1
-Flask==0.11.1
+Flask==1.0
 itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23