diff --git a/examples/http_plugins/python/flask/requirements.txt b/examples/http_plugins/python/flask/requirements.txt
index 2c18215..578ac16 100644
--- a/examples/http_plugins/python/flask/requirements.txt
+++ b/examples/http_plugins/python/flask/requirements.txt
@@ -1 +1 @@
-Flask==0.9
+Flask==1.0