diff --git a/docker-compose.yaml b/docker-compose.yaml
index 506e868..77bf5c1 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -34,6 +34,7 @@ services:
       - "traefik.http.routers.grafana.rule=Host(`grafana.ljh31.de`)"
       - "traefik.http.routers.grafana.entrypoints=websecure"
       - "traefik.http.routers.grafana.tls=true"
+      - "traefik.http.routers.grafana.tls.certresolver=letsencrypt"
       - "traefik.http.services.grafana.loadbalancer.server.port=3000"
 
     restart: unless-stopped