diff --git a/monitoring/docker-compose.yml b/monitoring/docker-compose.yml
index dd8e554..895ce97 100644
--- a/monitoring/docker-compose.yml
+++ b/monitoring/docker-compose.yml
@@ -72,7 +72,7 @@ services:
       - "traefik.docker.network=traefik"
       - "traefik.http.routers.grafana.rule=Host(`selendis.axion1337.de`)"
       - "traefik.http.routers.grafana.entrypoints=websecure"
-      - "traefik.http.routers.grafana.tls.certresolver=le"
+      - "traefik.http.routers.grafana.tls.certresolver=letsencrypt"
       - "traefik.http.services.grafana.loadbalancer.server.port=3000"
     depends_on:
       - prometheus