diff --git a/verwaltung/docker_nextcloud/templates/docker-compose.yml b/verwaltung/docker_nextcloud/templates/docker-compose.yml
index f608e7e155f0b07222b941db33bb515758224a76..6ff5e698907b8c56001a7eb4074c5c9bff826e3d 100644
--- a/verwaltung/docker_nextcloud/templates/docker-compose.yml
+++ b/verwaltung/docker_nextcloud/templates/docker-compose.yml
@@ -4,7 +4,7 @@ services:
 
   redis:
 
-    image: redis:6.0.8
+    image: redis:6.2.1
     restart: always
     networks:
       - default
@@ -12,7 +12,7 @@ services:
 
   mysql:
 
-    image: mariadb:10.5.6
+    image: mariadb:10.5.9
     restart: always
     volumes:
       - /srv/nextcloud/db/:/var/lib/mysql
@@ -27,7 +27,7 @@ services:
 
   app:
 
-    image: nextcloud:20.0.6-apache
+    image: nextcloud:21.0.0-apache
     restart: always
     volumes:
       - /srv/nextcloud/data/:/var/www/html/
@@ -59,7 +59,7 @@ services:
     depends_on:
       - app
     environment:
-      OPTIONS: "http://app/cron.php"
+      OPTIONS: "https://{{ domain }}/cron.php"
       CRON_SCHEDULE: "*/5 * * * *"
     networks:
       - default