diff --git a/src/main/java/com/gpt4/copilot/controller/ChatController.java b/src/main/java/com/gpt4/copilot/controller/ChatController.java
index 832f37f..863cbd6 100644
--- a/src/main/java/com/gpt4/copilot/controller/ChatController.java
+++ b/src/main/java/com/gpt4/copilot/controller/ChatController.java
@@ -1414,7 +1414,7 @@ public class ChatController {
                                     continue;
                                 }
                                 String chat_message_id = resJson.getString("id");
-                                String timestamp = resJson.getString("created");
+                                long timestamp = resJson.getLong("created");
                                 streamResponse.Choice choice = new streamResponse.Choice(0, new streamResponse.Delta(content), null);
                                 streamResponse streamResponse = new streamResponse(chat_message_id, "chat.completion.chunk", model, choice, timestamp);
                                 String tmpRes = "data: " + com.alibaba.fastjson.JSONObject.toJSONString(streamResponse) + "\n\n";
diff --git a/src/main/java/com/gpt4/copilot/pojo/streamResponse.java b/src/main/java/com/gpt4/copilot/pojo/streamResponse.java
index 6edff20..73ea63c 100644
--- a/src/main/java/com/gpt4/copilot/pojo/streamResponse.java
+++ b/src/main/java/com/gpt4/copilot/pojo/streamResponse.java
@@ -18,7 +18,7 @@ public class streamResponse {
     private String model;
     private String object;
     private Choice choice;
-    private String created;
+    private long created;
 
 
     @Data
diff --git a/target/classes/com/gpt4/copilot/controller/ChatController.class b/target/classes/com/gpt4/copilot/controller/ChatController.class
index c5f0aa9..2d1c3a9 100644
Binary files a/target/classes/com/gpt4/copilot/controller/ChatController.class and b/target/classes/com/gpt4/copilot/controller/ChatController.class differ
diff --git a/target/classes/com/gpt4/copilot/pojo/streamResponse.class b/target/classes/com/gpt4/copilot/pojo/streamResponse.class
index 1592b7c..73c78ac 100644
Binary files a/target/classes/com/gpt4/copilot/pojo/streamResponse.class and b/target/classes/com/gpt4/copilot/pojo/streamResponse.class differ
diff --git a/target/gpt-4-copilot-0.2.5.jar b/target/gpt-4-copilot-0.2.5.jar
index e86ffb6..219601b 100644
Binary files a/target/gpt-4-copilot-0.2.5.jar and b/target/gpt-4-copilot-0.2.5.jar differ
diff --git a/target/gpt-4-copilot-0.2.5.jar.original b/target/gpt-4-copilot-0.2.5.jar.original
index 7ecb434..6a7438d 100644
Binary files a/target/gpt-4-copilot-0.2.5.jar.original and b/target/gpt-4-copilot-0.2.5.jar.original differ