diff --git a/bluegreen-example/requirements.txt b/bluegreen-example/requirements.txt
index a3b1459..e740f2b 100644
--- a/bluegreen-example/requirements.txt
+++ b/bluegreen-example/requirements.txt
@@ -1,5 +1,5 @@
 Fabric==1.9.0
-Flask==0.10.1
+Flask==1.0
 Jinja2==2.7.3
 MarkupSafe==0.23
 Werkzeug==0.9.6