diff --git a/tools/docker-compose/ansible/roles/sources/templates/docker-compose.yml.j2 b/tools/docker-compose/ansible/roles/sources/templates/docker-compose.yml.j2
index 3b32df378e..34d32df891 100644
--- a/tools/docker-compose/ansible/roles/sources/templates/docker-compose.yml.j2
+++ b/tools/docker-compose/ansible/roles/sources/templates/docker-compose.yml.j2
@@ -1,5 +1,5 @@
 ---
-version: '2'
+version: '2.1'
 services:
 {% for i in range(cluster_node_count|int) %}
   {% set container_postfix = loop.index %}