diff --git a/kubernetes/common/mariadb-galera/templates/service.yaml b/kubernetes/common/mariadb-galera/templates/service.yaml
index 4cabde1..2dea4e9 100644
--- a/kubernetes/common/mariadb-galera/templates/service.yaml
+++ b/kubernetes/common/mariadb-galera/templates/service.yaml
@@ -34,6 +34,6 @@
       app: {{ include "common.servicename" . }}
   portLevelMtls:
     '{{ .Values.service.internalPort }}':
-      mode: DISABLE
+      mode: STRICT
 {{-   end }}
 {{- end }}