diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3acee18..e20cef5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,3 @@
-flask==0.10.1
+flask==1.0
 nose==1.3.0
 requests==2.5.3