diff --git a/grampsweb/config.yaml b/grampsweb/config.yaml
index 8beb4e01c..5b810e498 100644
--- a/grampsweb/config.yaml
+++ b/grampsweb/config.yaml
@@ -102,5 +102,5 @@ services:
 slug: grampsweb
 tmpfs: true
 url: https://github.com/alexbelgium/hassio-addons/tree/master/grampsweb
-version: 1.0
+version: "1.0"
 webui: "[PROTO:ssl]://[HOST]:[PORT:80]"