diff --git a/inventories/chaosknoten/hosts.yaml b/inventories/chaosknoten/hosts.yaml
index 9dab323..c737f34 100644
--- a/inventories/chaosknoten/hosts.yaml
+++ b/inventories/chaosknoten/hosts.yaml
@@ -249,6 +249,7 @@ infrastructure_authorized_keys_hosts:
     www2:
     www3:
     auth-dns:
+    lists:
 wiki_hosts:
   hosts:
     eh22-wiki:
diff --git a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2 b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
index b8a4cf2..6d35465 100644
--- a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
@@ -25,7 +25,7 @@ services:
       backend:
 
   pretix:
-    image: docker.io/pretix/standalone:2026.3
+    image: docker.io/pretix/standalone:2026.4
     command: ["all"]
     ports:
       - "8345:80"