diff --git a/cluster/apps/networking/mail/helm-release.yaml b/cluster/apps/networking/mail/helm-release.yaml
index 02d8c0c60..96b986990 100644
--- a/cluster/apps/networking/mail/helm-release.yaml
+++ b/cluster/apps/networking/mail/helm-release.yaml
@@ -10,7 +10,7 @@ spec:
     spec:
       # renovate: registryUrl=https://codecentric.github.io/helm-charts
       chart: mailhog
-      version: 5.4.0
+      version: 5.5.0
       sourceRef:
         kind: HelmRepository
         name: codecentric-charts