diff --git a/5.4-ElasticSearch.md b/5.4-ElasticSearch.md
index 257e18a..099ac59 100644
--- a/5.4-ElasticSearch.md
+++ b/5.4-ElasticSearch.md
@@ -149,7 +149,7 @@ server.host: "0.0.0.0"
 elasticsearch.hosts: ["http://0.0.0.0:9200"]
 
 # 設定 elasticsearch 存取金鑰
-elasticsearch.serviceAccountToken: "eyJ2ZXIiOiI4LjE0LjAiLCJhZHIiOlsiMTkyLjE2OC4zMC4xMDQ6OTIwMCJdLCJmZ3IiOiIzYTEyMWIwZTk4N2M0YzE5ODczMzdmNmU0OTk1Y2E3M2RmNmMzZmE5YzlkNzU4ZGYxN2M4YmNlOThjNjBiMjAxIiwia2V5IjoidWpEaVFwTUJDcmJ4NjlvajVsRm86SkpTUmQzdFdRTWVsUlIyUGxHbGg2ZyJ9"
+elasticsearch.serviceAccountToken: "<service account token>"
 ```
 
 #### 啟動 Kibana