diff --git a/renovate.json b/renovate.json
index 711c627..0e2bd7f 100644
--- a/renovate.json
+++ b/renovate.json
@@ -32,6 +32,11 @@
       "matchDatasources": ["docker"],
       "matchPackageNames": ["docker.io/pretix/standalone"],
       "versioning": "regex:^(?<major>\\d+\\.\\d+)(?:\\.(?<minor>\\d+))$"
+    },
+    {
+      "matchDatasources": ["docker"],
+      "matchPackageNames": ["docker.io/pretalx/standalone"],
+      "versioning": "regex:^v(?<major>\\d+\\.\\d+)(?:\\.(?<minor>\\d+))$"
     }
   ],
   "customManagers": [
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 }}"