diff --git a/elasticsearch/src/main/java/org/hibernate/search/elasticsearch/client/impl/DefaultElasticsearchClientFactory.java b/elasticsearch/src/main/java/org/hibernate/search/elasticsearch/client/impl/DefaultElasticsearchClientFactory.java
index b89a8e628a4..3506e40bd42 100644
--- a/elasticsearch/src/main/java/org/hibernate/search/elasticsearch/client/impl/DefaultElasticsearchClientFactory.java
+++ b/elasticsearch/src/main/java/org/hibernate/search/elasticsearch/client/impl/DefaultElasticsearchClientFactory.java
@@ -147,6 +147,7 @@ private HttpAsyncClientBuilder customizeHttpClientConfig(String propertyPrefix,
 
 	private RequestConfig.Builder customizeRequestConfig(String propertyPrefix, Properties properties, RequestConfig.Builder builder) {
 		return builder
+				.setConnectionRequestTimeout( 0 ) //Disable lease handling for the connection pool! See also HSEARCH-2681
 				.setSocketTimeout( ConfigurationParseHelper.getIntValue(
 						properties,
 						propertyPrefix + ElasticsearchEnvironment.SERVER_READ_TIMEOUT,