diff --git a/inventories/z9/hosts.yaml b/inventories/z9/hosts.yaml
index ebbab18f..66519db7 100644
--- a/inventories/z9/hosts.yaml
+++ b/inventories/z9/hosts.yaml
@@ -15,7 +15,7 @@ all:
       ansible_host: waybackproxy.ccchh.net
       ansible_user: chaos
     yate:
-      ansible_host: yate.z9.ccchh.net
+      ansible_host: yate.ccchh.net
       ansible_user: chaos
     z9-router:
       ansible_host: z9-router.ccchh.net
diff --git a/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2 b/resources/chaosknoten/ccchoir/docker_compose/compose.yaml.j2
index 72d898fa..2dff4bcd 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 }}"