diff --git a/examples/cookbook-plain/requirements.txt b/examples/cookbook-plain/requirements.txt
index 1dc8fcd..8b8f675 100644
--- a/examples/cookbook-plain/requirements.txt
+++ b/examples/cookbook-plain/requirements.txt
@@ -1,4 +1,4 @@
 graphene
 graphene-django
 graphql-core>=2.1rc1
-django==2.1.10
+django==2.1.11