diff --git a/services/mailu/helmrelease.yaml b/services/mailu/helmrelease.yaml
index 849d8aa9..abcf0329 100644
--- a/services/mailu/helmrelease.yaml
+++ b/services/mailu/helmrelease.yaml
@@ -365,6 +365,7 @@ spec:
                                     - titan-14
                                     - titan-15
                                     - titan-17
+                                    - titan-18
                                     - titan-19
                     serviceAccountName: mailu-vault-sync
                     automountServiceAccountToken: true
@@ -444,7 +445,7 @@ spec:
                             - matchExpressions:
                                 - key: kubernetes.io/hostname
                                   operator: NotIn
-                                  values: ["titan-13", "titan-15", "titan-17", "titan-19"]
+                                  values: ["titan-14", "titan-15", "titan-17", "titan-18", "titan-19"]
                     serviceAccountName: mailu-vault-sync
                     automountServiceAccountToken: true
                     containers:
@@ -528,6 +529,7 @@ spec:
                                     - titan-14
                                     - titan-15
                                     - titan-17
+                                    - titan-18
                                     - titan-19
                     serviceAccountName: mailu-vault-sync
                     automountServiceAccountToken: true
@@ -607,7 +609,7 @@ spec:
                             - matchExpressions:
                                 - key: kubernetes.io/hostname
                                   operator: NotIn
-                                  values: ["titan-13", "titan-15", "titan-17", "titan-19"]
+                                  values: ["titan-14", "titan-15", "titan-17", "titan-18", "titan-19"]
                     serviceAccountName: mailu-vault-sync
                     automountServiceAccountToken: true
                     containers: