diff --git a/backend/open_webui/routers/openai.py b/backend/open_webui/routers/openai.py
index 9c1325e..a19f128 100644
--- a/backend/open_webui/routers/openai.py
+++ b/backend/open_webui/routers/openai.py
@@ -10,7 +10,6 @@ from urllib.parse import quote, urlparse
 
 import aiohttp
 from aiocache import cached
-from azure.identity import DefaultAzureCredential, get_bearer_token_provider
 from fastapi import APIRouter, Depends, HTTPException, Request, status
 from fastapi.responses import (
     FileResponse,
@@ -218,6 +217,8 @@ def get_microsoft_entra_id_access_token():
     Get Microsoft Entra ID access token using DefaultAzureCredential for Azure OpenAI.
     Returns the token string or None if authentication fails.
     """
+    from azure.identity import DefaultAzureCredential, get_bearer_token_provider
+
     try:
         token_provider = get_bearer_token_provider(
             DefaultAzureCredential(), 'https://cognitiveservices.azure.com/.default'