diff --git a/docker-compose.yml b/docker-compose.yml
index a444bf9..e2f18c6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -220,6 +220,7 @@ services:
       POSTGRES_INITDB_ARGS: --encoding=UTF8
       POSTGRES_LOG_STATEMENT: ${POSTGRES_LOG_STATEMENT:-ddl}
       POSTGRES_LOG_MIN_DURATION_STATEMENT: ${POSTGRES_LOG_MIN_DURATION:-500}
+      PGDATA: /var/lib/postgresql/data
     volumes:
       - mvp_postgres_data:/var/lib/postgresql/data
       # Secrets (K8s Secrets equivalent)