diff --git a/docker-compose.yml b/docker-compose.yml
index 2ff4155..bb165d8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '3.4'
 services:
   ledserver-controller-html:
     build: clients/controller-html