diff --git a/README.md b/README.md
index ad64871..c1296e0 100644
--- a/README.md
+++ b/README.md
@@ -255,7 +255,7 @@ Contact
 [10]: http://openid.net/connect/
 [11]: https://www.authlete.com/
 [12]: https://www.authlete.com/documents/overview
-[13]: https://so.authlete.com/accounts/signup
+[13]: https://console.authlete.com/register
 [14]: https://www.authlete.com/documents/getting_started
 [15]: http://localhost:8081/
 [16]: https://www.authlete.com/documents/definitive_guide/protected_resource