diff --git a/roles/vaultwarden/templates/docker-compose.yml.j2 b/roles/vaultwarden/templates/docker-compose.yml.j2
index 71ff0d7..30def27 100644
--- a/roles/vaultwarden/templates/docker-compose.yml.j2
+++ b/roles/vaultwarden/templates/docker-compose.yml.j2
@@ -1,4 +1,5 @@
-version: "3"
+---
+version: "3.4"
 services:
   database:
     image: postgres:13-alpine