diff --git a/charts/nmaas/values.yaml b/charts/nmaas/values.yaml
index 1d0d940b05ed5b22fac06202ef0d4fceb08ab9fb..ddeb3cfe3a517800dbc970ba43e5dc0110740f46 100644
--- a/charts/nmaas/values.yaml
+++ b/charts/nmaas/values.yaml
@@ -172,12 +172,12 @@ platform:
       signingKey:
         secret:
           key: jwtSigningKey
-        # -- leave empty to use existing secret
+        # -- leave empty to use existing secret, length at least 96 characters
         literal: ""
       resetKey:
         secret:
           key: jwtResetKey
-        # -- leave empty to use existing secret
+        # -- leave empty to use existing secret, length at least 96 characters
         literal: ""
     oidc:
       enabled: false