diff --git a/docker-compose.yml b/docker-compose.yml
index 349dce4..d5d7f56 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,3 +1,5 @@
+version: "3"
+
 services:
   sb-mirror:
     image: mchangrh/sb-mirror:latest
@@ -39,4 +41,3 @@ services:
       - sb-mirror
 volumes:
   postgres_data: null
-version: "3"