diff --git a/example/type-system-extension/README.md b/example/type-system-extension/README.md
index c5bf496e22..3d65df6943 100644
--- a/example/type-system-extension/README.md
+++ b/example/type-system-extension/README.md
@@ -1,6 +1,6 @@
 # Type System Extension example
 
-https://facebook.github.io/graphql/draft/#sec-Type-System-Extensions
+https://graphql.github.io/graphql-spec/draft/#sec-Type-System-Extensions
 
 ```
 $ go run ./server/server.go