diff --git a/harbor/docker-compose.yml b/harbor/docker-compose.yml
index a1f0cc0..d55ad7c 100644
--- a/harbor/docker-compose.yml
+++ b/harbor/docker-compose.yml
@@ -1,3 +1,5 @@
+version: "3.9"
+
 services:
   # ---------------------------------------------------------
   # 1. Init-Container: erzeugt harbor.yml (OHNE HTTPS!)
@@ -84,11 +86,9 @@ services:
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.harbor.entrypoints=websecure"
-      - "traefik.http.routers.harbor.rule=Host(`${HARBOR_HOSTNAME:-harbor.local}`)"
+      - "traefik.http.routers.harbor.rule=Host(`${HARBOR_HOSTNAME}`)"
       - "traefik.http.routers.harbor.tls=true"
-      - "traefik.http.routers.harbor.tls.passthrough=false"
-      # Falls du Let's Encrypt nutzt:
-      # - "traefik.http.routers.harbor.tls.certresolver=myresolver"
+      - "traefik.http.routers.harbor.tls.certresolver=le"
       - "traefik.http.services.harbor.loadbalancer.server.port=${HARBOR_HTTP_PORT:-8080}"
 
   jobservice: