diff --git a/clusters/d8-ugmk-prod/infrastructure/kustomization.yaml b/clusters/d8-ugmk-prod/infrastructure/kustomization.yaml
index b741fc9..08ccca9 100644
--- a/clusters/d8-ugmk-prod/infrastructure/kustomization.yaml
+++ b/clusters/d8-ugmk-prod/infrastructure/kustomization.yaml
@@ -10,3 +10,8 @@ patches:
       kind: HelmRelease
       name: vault
       namespace: vault
+  - path: ./patches/vault-namespace.yaml
+    target:
+      version: v1
+      kind: Namespace
+      name: vault
diff --git a/clusters/d8-ugmk-prod/infrastructure/patches/vault-namespace.yaml b/clusters/d8-ugmk-prod/infrastructure/patches/vault-namespace.yaml
new file mode 100644
index 0000000..b4e1203
--- /dev/null
+++ b/clusters/d8-ugmk-prod/infrastructure/patches/vault-namespace.yaml
@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: vault
+  labels:
+    istio-injection: disabled