diff --git a/renovate.json b/renovate.json
index 2d0a9848..a2ac9696 100644
--- a/renovate.json
+++ b/renovate.json
@@ -38,10 +38,13 @@
         "!git.hamburg.ccc.de/ccchh/oci-images/keycloak"
       ]
     },
+    // Automatically merge patch level updates
+    // https://docs.renovatebot.com/key-concepts/automerge/
     {
       "matchUpdateTypes": ["patch"],
-      "matchCurrentVersion": "!/^0/",
-      "automerge": true
+      "automerge": true,
+      "ignoreTests": true,
+      "automergeType": "branch"
     },
     {
       "matchDatasources": ["docker"],
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 }}"