diff --git a/templates/zerotier/0/docker-compose.yml b/templates/zerotier/0/docker-compose.yml
index 1a14e6d..59830ed 100644
--- a/templates/zerotier/0/docker-compose.yml
+++ b/templates/zerotier/0/docker-compose.yml
@@ -1,4 +1,4 @@
-version: "3"
+version: '3'
 services:
   zerotier:
     container_name: ${NAME}