diff --git a/docker-compose.yml b/docker-compose.yml
index 55283cfe4..204768e32 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,3 @@
-version: '3.9'
 services:
   zookeeper-1:
     hostname: 'zookeeper-1'