diff --git a/.env.template b/.env.template
index d35e9e522..598407456 100644
--- a/.env.template
+++ b/.env.template
@@ -180,10 +180,10 @@ KNOWLEDGE_GRAPH_COMMUNITY_SEARCH_RECALL_SCORE=0.0
 
 ## ElasticSearch vector db config
 #VECTOR_STORE_TYPE=ElasticSearch
-ElasticSearch_URL=127.0.0.1
-ElasticSearch_PORT=9200
-ElasticSearch_USERNAME=elastic
-ElasticSearch_PASSWORD={your_password}
+ELASTICSEARCH_URL=127.0.0.1
+ELASTICSEARCH_PORT=9200
+ELASTICSEARCH_USERNAME=elastic
+ELASTICSEARCH_PASSWORD={your_password}
 
 ### TuGraph config
 #TUGRAPH_HOST=127.0.0.1