diff --git a/docker-compose.without-nginx.yml b/docker-compose.without-nginx.yml
index 0fa410f..6e1c174 100644
--- a/docker-compose.without-nginx.yml
+++ b/docker-compose.without-nginx.yml
@@ -1,4 +1,4 @@
-version: "3"
+version: "2.4"
 
 services:
   mattermost: