diff --git a/stacks/sything/docker-compose.yml b/stacks/sything/docker-compose.yml
index f0478d3..e8a9a01 100644
--- a/stacks/sything/docker-compose.yml
+++ b/stacks/sything/docker-compose.yml
@@ -1,5 +1,4 @@
 ---
-version: "3"
 volumes:
   st-sync-1-cfg:
   st-sync-2-cfg: