diff --git a/langchain4j-elasticsearch/src/main/java/dev/langchain4j/store/embedding/elasticsearch/ElasticsearchRequestFailedException.java b/langchain4j-elasticsearch/src/main/java/dev/langchain4j/store/embedding/elasticsearch/ElasticsearchRequestFailedException.java
index b21246ea987..de2615f87ad 100644
--- a/langchain4j-elasticsearch/src/main/java/dev/langchain4j/store/embedding/elasticsearch/ElasticsearchRequestFailedException.java
+++ b/langchain4j-elasticsearch/src/main/java/dev/langchain4j/store/embedding/elasticsearch/ElasticsearchRequestFailedException.java
@@ -1,6 +1,6 @@
 package dev.langchain4j.store.embedding.elasticsearch;
 
-class ElasticsearchRequestFailedException extends RuntimeException {
+public class ElasticsearchRequestFailedException extends RuntimeException {
 
     public ElasticsearchRequestFailedException() {
         super();
diff --git a/langchain4j-opensearch/src/main/java/dev/langchain4j/store/embedding/opensearch/OpenSearchRequestFailedException.java b/langchain4j-opensearch/src/main/java/dev/langchain4j/store/embedding/opensearch/OpenSearchRequestFailedException.java
index 97cec95d537..8f6045dffb2 100644
--- a/langchain4j-opensearch/src/main/java/dev/langchain4j/store/embedding/opensearch/OpenSearchRequestFailedException.java
+++ b/langchain4j-opensearch/src/main/java/dev/langchain4j/store/embedding/opensearch/OpenSearchRequestFailedException.java
@@ -1,6 +1,6 @@
 package dev.langchain4j.store.embedding.opensearch;
 
-class OpenSearchRequestFailedException extends RuntimeException {
+public class OpenSearchRequestFailedException extends RuntimeException {
 
     public OpenSearchRequestFailedException() {
         super();