diff --git a/code_generation/OpenAI_code_generation.ipynb b/code_generation/OpenAI_code_generation.ipynb
index fef6465..77ecb58 100644
--- a/code_generation/OpenAI_code_generation.ipynb
+++ b/code_generation/OpenAI_code_generation.ipynb
@@ -56,7 +56,8 @@
         "# install the latest version of kFinance package\n",
         "%pip install https://kfinance.kensho.com/static/kensho_finance.tar.gz\n",
         "# install the LLM Python package\n",
-        "%pip install openai"
+        "%pip install openai\n",
+        "%pip install httpx==0.27.2"
       ]
     },
     {
diff --git a/function_calling/OpenAI_function_calling.ipynb b/function_calling/OpenAI_function_calling.ipynb
index 9196b30..c7a7fd6 100644
--- a/function_calling/OpenAI_function_calling.ipynb
+++ b/function_calling/OpenAI_function_calling.ipynb
@@ -59,7 +59,8 @@
     "# install the latest version of kFinance package\n",
     "%pip install https://kfinance.kensho.com/static/kensho_finance.tar.gz\n",
     "# install the LLM Python package\n",
-    "%pip install openai"
+    "%pip install openai\n",
+    "%pip install httpx==0.27.2"
    ]
   },
   {