diff --git a/docker-compose.override.yml-example b/docker-compose.override.yml-example
index b93885a9..185e4b43 100644
--- a/docker-compose.override.yml-example
+++ b/docker-compose.override.yml-example
@@ -1,5 +1,6 @@
 # IMPORTANT: The version must match the version of docker-compose.yml
-version: '2.1'
+---
+version: '2.3'
 
 # The following override shows an example for the cockroachdb
 services: