diff --git a/doc/030_preparing_a_new_repo.rst b/doc/030_preparing_a_new_repo.rst
index 5f12cdb17..c8ad425a3 100644
--- a/doc/030_preparing_a_new_repo.rst
+++ b/doc/030_preparing_a_new_repo.rst
@@ -582,9 +582,9 @@ The number of concurrent connections to the GCS service can be set with the
 ``-o gs.connections=10`` switch. By default, at most five parallel connections are
 established.
 
-.. _service account: https://cloud.google.com/storage/docs/authentication#service_accounts
+.. _service account: https://cloud.google.com/iam/docs/service-accounts
 .. _create a service account key: https://cloud.google.com/iam/docs/creating-managing-service-account-keys#iam-service-account-keys-create-console
-.. _default authentication material: https://developers.google.com/identity/protocols/application-default-credentials
+.. _default authentication material: https://cloud.google.com/docs/authentication/production
 
 .. _other-services: