diff --git a/config/services.yaml b/config/services.yaml
index 1836456..848b6f1 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -1,5 +1,6 @@
 parameters:
-  version: '%env(ROOTER_VERSION)%'
+  version: '%env(default:versionDefault:ROOTER_VERSION)%'
+  versionDefault: '@@latest'
 
 services:
   _defaults: