diff --git a/ali-dbhub-server/ali-dbhub-server-web/ali-dbhub-server-web-api/src/main/java/com/alibaba/dbhub/server/web/api/util/OpenAIClient.java b/ali-dbhub-server/ali-dbhub-server-web/ali-dbhub-server-web-api/src/main/java/com/alibaba/dbhub/server/web/api/util/OpenAIClient.java
index f9917afc5..5167ab6df 100644
--- a/ali-dbhub-server/ali-dbhub-server-web/ali-dbhub-server-web-api/src/main/java/com/alibaba/dbhub/server/web/api/util/OpenAIClient.java
+++ b/ali-dbhub-server/ali-dbhub-server-web/ali-dbhub-server-web-api/src/main/java/com/alibaba/dbhub/server/web/api/util/OpenAIClient.java
@@ -21,7 +21,7 @@ public class OpenAIClient {
 
     public static final String OPENAI_KEY = "chatgpt.apiKey";
 
-    private static OpenAiStreamClient OPEN_AI_STREAM_CLIENT;
+    private static volatile OpenAiStreamClient OPEN_AI_STREAM_CLIENT;
     private static String apiKey;
 
     public static OpenAiStreamClient getInstance() {