diff --git a/docker/release/dockercomposefiles/docker-compose-1.x.yml b/docker/release/dockercomposefiles/docker-compose-1.x.yml
index a64c5ba5a8..99e0dd5576 100644
--- a/docker/release/dockercomposefiles/docker-compose-1.x.yml
+++ b/docker/release/dockercomposefiles/docker-compose-1.x.yml
@@ -1,5 +1,3 @@
----
-version: '3'
 services:
   opensearch-node1:
     image: opensearchproject/opensearch:1