diff --git a/README.md b/README.md
index a9d3881..8ec76ef 100644
--- a/README.md
+++ b/README.md
@@ -55,8 +55,7 @@ config.embedding_model = 'all-MiniLM-L6-v2'
 config.milvus_host = '127.0.0.1'
 config.milvus_port = '19530'
 config.es_enable = True
-config.es_host = '127.0.0.1'
-config.es_port = '9200'
+config.es_connection_kwargs = {hosts=['https://localhost:9200', basic_auth=('elastic', 'password')]}
 
 p = AutoPipes.pipeline('osschat-insert', config=config)
 res = p('https://github.com/towhee-io/towhee/blob/main/README.md', 'osschat')
@@ -134,21 +133,9 @@ The user password for [Cloud user](https://zilliz.com/cloud), defaults to `None`
 
 Whether to use Elasticsearch, default is `True`.
 
-***es_host***: str
+***es_connection_kwargs***
 
-Host of Elasticsearch, default is `'127.0.0.1'`.
-
-***es_port***: str
-
-Port of Elasticsearche, default is `'9200'`. 
-
-***es_user***: str
-
-The user name for Elasticsearch, defaults to `None`.
-
-***es_password***: str
-
-The user password for Elasticsearch, defaults to `None`.
+The connection arguments to connect elastic service.
 
 <br />
 
diff --git a/osschat_insert.py b/osschat_insert.py
index 92f7ccc..f7946f7 100644
--- a/osschat_insert.py
+++ b/osschat_insert.py
@@ -39,11 +39,7 @@ class OSSChatInsertConfig(BaseModel, extra=Extra.allow):
     milvus_password: Optional[str] = None
     # config for elasticsearch
     es_enable: Optional[bool] = True
-    es_host: Optional[str] = '127.0.0.1'
-    es_port: Optional[str] = '9200'
-    es_user: Optional[str] = None
-    es_password: Optional[str] = None
-    es_ca_certs: Optional[str] = None
+    es_connection_kwargs: Optional[dict] = {hosts=['https://127.0.0.1:9200'], basic_auth=('elastic', 'my_password')}
 
 
 _hf_models = ops.sentence_embedding.transformers().get_op().supported_model_names()