diff --git a/content/LangChain Chat with Your Data/6.问答 Question Answering.ipynb b/content/LangChain Chat with Your Data/6.问答 Question Answering.ipynb
index d13a694..e5ef69a 100644
--- a/content/LangChain Chat with Your Data/6.问答 Question Answering.ipynb	
+++ b/content/LangChain Chat with Your Data/6.问答 Question Answering.ipynb	
@@ -55,10 +55,7 @@
     "\n",
     "_ = load_dotenv(find_dotenv()) # read local .env file\n",
     "\n",
-    "openai.api_key  = os.environ['OPENAI_API_KEY']\n",
-    "\n",
-    "os.environ['HTTPS_PROXY'] = 'http://127.0.0.1:7890'\n",
-    "os.environ[\"HTTP_PROXY\"] = 'http://127.0.0.1:7890'"
+    "openai.api_key  = os.environ['OPENAI_API_KEY']\n"
    ]
   },
   {