diff --git a/api/libs/helper.py b/api/libs/helper.py
index afc8f31681..328815962d 100644
--- a/api/libs/helper.py
+++ b/api/libs/helper.py
@@ -8,6 +8,7 @@ import time
 import uuid
 from collections.abc import Generator, Mapping
 from datetime import datetime
+from decimal import Decimal
 from hashlib import sha256
 from typing import TYPE_CHECKING, Any, Optional, Union, cast
 from zoneinfo import available_timezones
@@ -196,7 +197,10 @@ def generate_text_hash(text: str) -> str:
 
 def compact_generate_response(response: Union[Mapping, Generator, RateLimitGenerator]) -> Response:
     if isinstance(response, dict):
-        return Response(response=json.dumps(response), status=200, mimetype="application/json")
+        return Response(response=json.dumps(response,
+                                            default=lambda x: str(x) if isinstance(x, Decimal) else x),
+                        status=200,
+                        mimetype="application/json")
     else:
 
         def generate() -> Generator: