diff --git a/deploy/docker-compose.yml b/deploy/docker-compose.yml
index 033731ac..ec8f48c8 100644
--- a/deploy/docker-compose.yml
+++ b/deploy/docker-compose.yml
@@ -158,6 +158,7 @@ services:
       - POSTGRES_USER=${POSTGRES_USER:-sub2api}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD is required}
       - POSTGRES_DB=${POSTGRES_DB:-sub2api}
+      - PGDATA=/var/lib/postgresql/data
       - TZ=${TZ:-Asia/Shanghai}
     networks:
       - sub2api-network