diff --git a/docker-compose.yml b/docker-compose.yml
index bb981fc..206a66d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -34,6 +34,7 @@ services:
       - SEAFILE_SERVER_PROTOCOL=https  # Protocol used to access Seafile (http or https)
       - SERVICE_URL=https://${SEAFILE_SERVER_HOSTNAME}  # Full URL to access Seafile
       - FILE_SERVER_ROOT=https://${SEAFILE_SERVER_HOSTNAME}/seafhttp  # URL for file server
+      - FORCE_HTTPS_IN_CONF=true  # Force HTTPS in all Seafile configuration files
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.seafile.rule=Host(`${SEAFILE_SERVER_HOSTNAME}`)"