diff --git a/README.md b/README.md
index d0ef4fe..78db3f9 100644
--- a/README.md
+++ b/README.md
@@ -658,6 +658,8 @@ The order in which authentication methods are checked is:
 3. Username/Password
 4. Azure CLI or Managed identity (set environment `AZURE_USE_MSI=true` to enabled MSI)
 
+more see: https://github.com/helmfile/vals/issues/441
+
 ### EnvSubst
 
 Environment variables substitution.