diff --git a/docker-compose.yml b/docker-compose.yml
index 1107f79..c00cfe7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -34,11 +34,29 @@ services:
       - backend
     restart: unless-stopped
 
+  cron:
+      #TODO version in variable
+    image: nextcloud:21
+    container_name: nextcloud-cron
+    restart: unless-stopped
+    networks:
+      - backend
+    volumes:
+      #TODO vlumen unten defenieren
+      - ./_data_/nextcloud/root:/var/www/html
+      - ./_data_/nextcloud/custom_apps:/var/www/html/custom_apps
+      - ./_data_/nextcloud/config:/var/www/html/config
+      - ./_data_/nextcloud/data:/var/www/html/data
+    entrypoint: /cron.sh
+    depends_on:
+     - mysql_nextcloud
+     - redis
+
   nextcloud:
     depends_on:
      - mysql_nextcloud
      - redis
-    image: nextcloud:18
+    image: nextcloud:21
     container_name: nextcloud
     networks:
       - webNet