diff --git a/index.bs b/index.bs index 67a696a..276aeb0 100644 --- a/index.bs +++ b/index.bs @@ -1269,7 +1269,7 @@ The following apply regarding constraints on Inboxes provided by Data/Service No - A constraint must be expressed by a constraint document that is available at a URL that is discoverable in the manner described above. Both machine-readable and natural language constraint documents can be used. Constraint documents made available at different URLs must express different constraints. - In accordance with [[LDN]], a notification that is POSTed to an Inbox but violates an applicable constraint should be rejected and the response should have an appropriate HTTP 4xx code. -- Additionally, that response should comply with the [Problem Details for HTTP APIs](https://datatracker.ietf.org/doc/draft-ietf-httpapi-rfc7807bis/) specification and the value for the type of the reported problem (`type` member of the Problem Details JSON Object) should be the URL of the constraint document that was violated. +- Additionally, that response should comply with the [Problem Details for HTTP APIs](https://www.rfc-editor.org/info/rfc9457) specification and the value for the type of the reported problem (`type` member of the Problem Details JSON Object) should be the URL of the constraint document that was violated.