diff --git a/kubernetes/apps/default/smtp-relay/app/helmrelease.yaml b/kubernetes/apps/default/smtp-relay/app/helmrelease.yaml
index 31e1de1961..93939fb196 100644
--- a/kubernetes/apps/default/smtp-relay/app/helmrelease.yaml
+++ b/kubernetes/apps/default/smtp-relay/app/helmrelease.yaml
@@ -28,7 +28,7 @@ spec:
           app:
             image:
               repository: ghcr.io/foxcpp/maddy
-              tag: 0.9.3@sha256:2ce7ce6343816c8c96056776dd06660987d97ada96d31163cdd968d62e496a12
+              tag: 0.9.4@sha256:cf79fddee12228b3c47af5fbbfadceef115d46d4ae434429bef70f1d565a0abf
             env:
               DEBUG: "true"
               SMTP_DOMAIN: "${SECRET_DOMAIN}"