diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7924b9d..5d9769c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-Flask==0.10.1
+Flask==1.0
 httpretty==0.8.10
 PyJWT==1.4.0
 pytz==2015.7