diff --git a/docker-compose/docker-compose.yml b/docker-compose/docker-compose.yml
index b7c86a5..e59d6f1 100644
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -9,7 +9,7 @@ services:
       - "443:443"
     volumes:
       - ./nginx:/etc/nginx/conf.d
-      - ./cert:/etc/nginx/ssl
+      - ./cert:/etc/nginx/ssl:ro
     networks:
       - loop-network
     depends_on: