diff --git a/docker-compose.yml b/docker-compose.yml
index fe7353a..648f850 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,9 +13,12 @@ server:
   links:
     - db
 db:
-  image: postgres
+  image: postgres:9.3
   expose:
     - 5432
+  volumes:
+    - ./dbdata:/var/lib/postgresql/data
+
   environment:
     POSTGRES_PASSWORD: password
     POSTGRES_USER: user