diff --git a/manifests/mailu/values.yaml b/manifests/mailu/values.yaml
index 8b11e05..ae47ecb 100644
--- a/manifests/mailu/values.yaml
+++ b/manifests/mailu/values.yaml
@@ -24,7 +24,7 @@ admin:
 tls:
   certmanager:
     enabled: true
-    secretName: mailu-certificates
+    secretName: mailu-certificates-4cswg
 
 service:
   front: