diff --git a/kafka-cluster/values.yaml b/kafka-cluster/values.yaml
index f18ec97..2cf6eb1 100644
--- a/kafka-cluster/values.yaml
+++ b/kafka-cluster/values.yaml
@@ -1,4 +1,4 @@
-#version: kafka-cluster, 1.0.0
+#version: kafka-cluster, 0.5.0
 apiVersion: kafka.strimzi.io/v1beta2
 kind: KafkaNodePool
 metadata:
@@ -57,6 +57,12 @@ spec:
         - name: KAFKA_OPTS
           value: "-Duser.timezone=Asia/Seoul"
     listeners:
+      - name: internal-tls
+        port: 9094
+        type: cluster-ip
+        tls: true
+        authentication:
+          type: scram-sha-512
       - name: tls
         type: cluster-ip
         port: 9093