diff --git a/charts/mail-relay/0.2.0/values.yaml b/charts/mail-relay/0.2.0/values.yaml
index 8453abe..6de73cb 100644
--- a/charts/mail-relay/0.2.0/values.yaml
+++ b/charts/mail-relay/0.2.0/values.yaml
@@ -23,8 +23,8 @@ serviceAccount:
   # If not set and create is true, a name is generated using the fullname template
   name: ""
 config:
-  sasl_passwd: {}
-  transport: {}
+  sasl_passwd: ""
+  transport: ""
 
 env:
   ALLOWED_SENDER_DOMAINS: "domain.local"