diff --git a/docker-compose.yml b/docker-compose.yml
index 6125c2b..fa4aa41 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -114,6 +114,8 @@ services:
       interval: 30s
       timeout: 10s
       retries: 5
+    labels:
+      - traefik.http.routers.onlyoffice.middlewares=oo-secure-headers@file
 
 volumes:
   nextcloud_data: