diff --git a/inventories/chaosknoten/host_vars/auth-dns.yaml b/inventories/chaosknoten/host_vars/auth-dns.yaml
index 01fadbc..9b94479 100644
--- a/inventories/chaosknoten/host_vars/auth-dns.yaml
+++ b/inventories/chaosknoten/host_vars/auth-dns.yaml
@@ -12,7 +12,7 @@ knot__remotes:
 
 knot__catalog_zones:
   - domain: "hamburg.ccc.de.catalog."
-    notify_targets: [ "ns.vie.ccc.de" ]
+    notify_targets: [ "erfadns.ber.ccc.de", "ns.vie.ccc.de" ]
 
 knot__zones:
   - domain: "hh.ccc.de."
diff --git a/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2 b/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2
index c2108d8..f359f47 100644
--- a/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2
@@ -3,7 +3,7 @@
 
 services:
   database:
-    image: docker.io/library/mariadb:11
+    image: docker.io/library/mariadb:12
     environment:
       - "MARIADB_DATABASE=wordpress"
       - "MARIADB_ROOT_PASSWORD={{ secret__mariadb_root_password }}"