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 }}"
diff --git a/roles/knot/templates/knot.conf.j2 b/roles/knot/templates/knot.conf.j2
index c661e25..45a0f8d 100644
--- a/roles/knot/templates/knot.conf.j2
+++ b/roles/knot/templates/knot.conf.j2
@@ -67,8 +67,7 @@ template:
   # template for automatically created special zones
   - id: catalog
     catalog-role: generate
-    dnssec-signing: on
-    dnssec-policy: default
+    dnssec-signing: off
 
 
 # define zones on this server