diff --git a/resources/chaosknoten/lists/docker_compose/compose.yaml.j2 b/resources/chaosknoten/lists/docker_compose/compose.yaml.j2
index b4372c05..3f29a33b 100644
--- a/resources/chaosknoten/lists/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/lists/docker_compose/compose.yaml.j2
@@ -62,7 +62,7 @@ services:
       - POSTGRES_DB=mailmandb
       - POSTGRES_USER=mailman
       - "POSTGRES_PASSWORD={{ secret__lists__postgres_password }}"
-    image: docker.io/library/postgres:12-alpine
+    image: docker.io/library/postgres:15-alpine
     volumes:
       - /opt/mailman/database:/var/lib/postgresql/data
     networks:
@@ -77,7 +77,7 @@ services:
       - KEYCLOAK_CLIENT_SECRET={{ secret__lists__keycloak_client_secret }}
       - KEYCLOAK_REALM=ccchh
       - KEYCLOAK_URL=https://id.hamburg.ccc.de
-      - LIST_ATTRIBUTES=chaos@lists.hamburg.ccc.de:mailinglist-chaos
+      - LIST_ATTRIBUTES=chaos@lists.hamburg.ccc.de:mailinglist-chaos,intern@lists.hamburg.ccc.de:mailinglist-intern
       - MAILMAN_API_PASSWORD={{ secret__lists__rest_password }}
       - MAILMAN_API_URL=http://mailman-core:8001/3.1
     image: git.hamburg.ccc.de/ccchh/mailman-subscription-sync:latest