diff --git a/README.md b/README.md
index 9468145..89f71b2 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,6 @@
 
 ## Access Service
 
-This repo contains protobuf definitions for the OpenID AuthZEN Access Service. The current implementation reflects the [Authorization API 1.0 – draft 03](https://openid.github.io/authzen/) specification.
+This repo contains protobuf definitions for the OpenID AuthZEN Access Service. The current implementation reflects the [Authorization API 1.0 – draft 05](https://openid.github.io/authzen/) specification.
 
-All builds are published to the [buf.build/auzthzen/access](https://buf.build/authzen/access) registry, where one can [browse](https://buf.build/authzen/access/docs/v0.1.0-02:authzen.access.v1) the definitions or [generate](https://buf.build/authzen/access/sdks/v0.1.0-03:protobuf) server and client language bindings.
+All builds are published to the [buf.build/auzthzen/access](https://buf.build/authzen/access) registry, where one can [browse](https://buf.build/authzen/access/docs/v0.1.0-05:authzen.access.v1) the definitions or [generate](https://buf.build/authzen/access/sdks/v0.1.0-05:protobuf) server and client language bindings.