diff --git a/resources/chaosknoten/lists/docker_compose/compose.yaml.j2 b/resources/chaosknoten/lists/docker_compose/compose.yaml.j2
index db605b57..24c686b4 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:13-alpine
     volumes:
       - /opt/mailman/database:/var/lib/postgresql/data
     networks:
diff --git a/resources/chaosknoten/pad/docker_compose/compose.yaml.j2 b/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
index 0aac3e82..84743d84 100644
--- a/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
@@ -27,6 +27,7 @@ services:
       - "CMD_ALLOW_ANONYMOUS_VIEWS=true"
       - "CMD_DEFAULT_PERMISSION=limited"
       - "CMD_EMAIL=false"
+      - "CMD_EXTERNAL_LINK_WARNING=false"
       - "CMD_OAUTH2_USER_PROFILE_URL=https://id.hamburg.ccc.de/realms/ccchh/protocol/openid-connect/userinfo"
       - "CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR=preferred_username"
       - "CMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR=name"