diff --git a/backend/app/api/routes/utils.py b/backend/app/api/routes/utils.py
index 5be4db2..dbb6ad8 100644
--- a/backend/app/api/routes/utils.py
+++ b/backend/app/api/routes/utils.py
@@ -2,6 +2,7 @@ from fastapi import APIRouter, Depends
 from pydantic.networks import EmailStr
 import httpx
 from pydantic import BaseModel
+import re
 
 from app.api.deps import get_current_active_superuser
 from app.models import Message
@@ -37,10 +38,15 @@ class ClassifyRequest(BaseModel):
 
 @router.post("/bentoml_classifiy")
 async def bentoml_classifiy(data: ClassifyRequest):
+    text = data.text
+    cleaned_text = text.strip().replace("\n", "")
+    cleaned_text = re.sub(r'[\x00-\x1F]', '', cleaned_text)
+
+
     async with httpx.AsyncClient() as client:
         response = await client.post(
             "http://120.76.41.122:3000/classify",
-            json={"text": f"{data.text}"}
+            json={"text": f"{cleaned_text}"}
         )
         result = response.json()
     return fast_json_response(data=result)