diff --git a/docker-compose.yml b/docker-compose.yml
index 7613140..b39d11c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,7 +6,8 @@ services:
       POSTGRES_DB: praktikum
       POSTGRES_USER: praktikum
       POSTGRES_PASSWORD: ${DATABASE_PASSWORD:-password}
-    volumes: [pgdata:/var/lib/postgresql/data]
+    volumes:
+      - pgdata:/var/lib/postgresql/data
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U praktikum -d praktikum"]
       interval: 10s