diff --git a/docker-compose.yml b/docker-compose.yml
index 77b1993c..79ba201c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,5 @@
-version: '2'
+version: '3.5'
+
 services:
   db:
     image: mariadb:10.3