diff --git a/requirements.txt b/requirements.txt
index 648546a..ee81f3f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ click==6.7
 coverage==4.4.2
 Cython==0.27.3
 docutils==0.14
-Flask==0.12.2
+Flask==1.0
 idna==2.6
 itsdangerous==0.24
 Jinja2==2.10