diff --git a/README.md b/README.md
index 3d88715..6df0025 100644
--- a/README.md
+++ b/README.md
@@ -7,20 +7,25 @@ required for the CAcert IDP and client registration applications.
 The documentation in this repository is licensed under the terms of the Apache
 License Version 2.0.
 
-Copyright © 2020, 2021, 2022  Jan Dittberner
+Copyright © 2020-2023  Jan Dittberner
 
-The setup and configuration has been tested on Debian testing on 2022-08-09
+The setup and configuration has been tested on Debian testing on 2023-08-07
 using the following versions software versions:
 
 - mkcert v1.4.4
-- openssl 3.0.4
-- PostgreSQL 14.4
-- ORY Hydra v1.11.9
+- openssl 3.0.9
+- PostgreSQL 15.3
+- ORY Hydra v2.1.2
+
+On Debian 12 Bookworm you can install `mkcert`, `openssl` and PostgreSQL via apt:
+
+```shell
+sudo apt install mkcert openssl postgresql
+```
 
 ## Create certificate for Hydra
 
-You need a set of certificates for the Hydra. I recommend to use the
-[mkcert](https://github.com/FiloSottile/mkcert) utility by Filippo Valsorda:
+You need a set of certificates for the Hydra. I recommend to use the `mkcert` utility by Filippo Valsorda:
 
 1. Setup local CA
 
@@ -61,32 +66,33 @@ hydra migrate sql "postgres://hydra_local:${YOUR_POSTGRESQL_PASSWORD}@localhost:
 
 Create a configuration file for Hydra i.e. ``hydra.yaml``:
 
-```
+```yaml
 serve:
   admin:
     host: hydra.cacert.localhost
+    tls:
+      enabled: true
+      cert:
+        path: hydra.cacert.localhost+1.pem
+      key:
+        path: hydra.cacert.localhost+1.key.pem
   public:
     host: auth.cacert.localhost
-  tls:
-    cert:
-      path: hydra.cacert.localhost+1.pem
-    key:
-      path: hydra.cacert.localhost+1.key.pem
-  dsn: 'postgres://hydra_local:${YOUR_POSTGRESQL_PASSWORD}@localhost:5432/hydra_local'
+    tls:
+      enabled: true
+      cert:
+        path: hydra.cacert.localhost+1.pem
+      key:
+        path: hydra.cacert.localhost+1.key.pem
+
+dsn: 'postgres://hydra_local:${YOUR_POSTGRESQL_PASSWORD}@localhost:5432/hydra_local'
 
 webfinger:
   oidc_discovery:
     supported_claims:
       - email
       - email_verified
-      - given_name
-      - family_name
-      - middle_name
       - name
-      - birthdate
-      - zoneinfo
-      - locale
-      - https://cacert.localhost/groups
     supported_scope:
       - profile
       - email
@@ -128,13 +134,11 @@ hydra serve all --config hydra.yaml
 Create an OpenID Connect (OIDC) client configuration for the demo application
 
 ```shell
-hydra clients create --endpoint https://hydra.cacert.localhost:4445/ \
-    --callbacks https://app.cacert.localhost:4000/callback \
-    --logo-uri https://register.cacert.localhost:3000/images/app.png \
-    --name "Client App Demo" \
-    --scope "openid offline_access profile email" \
-    --post-logout-callbacks https://app.cacert.localhost:4000/after-logout \
-    --client-uri https://register.cacert.localhost:3000/info/app
+hydra create oauth2-client --endpoint https://hydra.cacert.localhost:4445/ \
+    --name "OIDC Demo App with Logo" \
+    --scope openid --scope profile --scope groups --scope email \
+    --post-logout-callback https://app.cacert.localhost:4000/after-logout \
+    --redirect-uri https://app.cacert.localhost:4000/callback 
 ```
 
 The command returns a client id and a client secret, that you need for the