diff --git a/ci/demo/helloworld/requirements.txt b/ci/demo/helloworld/requirements.txt
index 632a1ef..578ac16 100644
--- a/ci/demo/helloworld/requirements.txt
+++ b/ci/demo/helloworld/requirements.txt
@@ -1 +1 @@
-Flask==0.10.1
+Flask==1.0