diff --git a/packages/dbgpt-core/src/dbgpt/util/json_utils.py b/packages/dbgpt-core/src/dbgpt/util/json_utils.py
index cbbb18d006..7fa609bacb 100644
--- a/packages/dbgpt-core/src/dbgpt/util/json_utils.py
+++ b/packages/dbgpt-core/src/dbgpt/util/json_utils.py
@@ -4,7 +4,7 @@
 import logging
 import re
 from dataclasses import asdict, is_dataclass
-from datetime import date, datetime
+from datetime import date, datetime, time
 
 logger = logging.getLogger(__name__)
 
@@ -24,6 +24,8 @@ def default(self, obj):
             return obj.isoformat()
         if isinstance(obj, date):
             return obj.isoformat()
+        if isinstance(obj, time):
+            return obj.isoformat()
         return super().default(obj)