diff --git a/heimdall/docker-compose.yml b/heimdall/docker-compose.yml
index 6ea2984..6997af8 100644
--- a/heimdall/docker-compose.yml
+++ b/heimdall/docker-compose.yml
@@ -1,5 +1,5 @@
 ---
-version: "2"
+version: "3"
 services:
   traefik:
     image: "traefik:v2.2"