From 926d4cfda734852c21c66cf7821f7e02b462864a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9o=20LEBRUN?= <mib.ftw@gmail.com>
Date: Tue, 28 Nov 2023 20:26:54 -0500
Subject: [PATCH] Set default region from boto3 session for Bedrock (#13694)

- **Description:** Set default region from boto3 session for Bedrock
- **Issue:** #13683
---
 libs/langchain/langchain/llms/bedrock.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/langchain/langchain/llms/bedrock.py b/libs/langchain/langchain/llms/bedrock.py
index acc977a0a9caa..020847fcce5e8 100644
--- a/libs/langchain/langchain/llms/bedrock.py
+++ b/libs/langchain/langchain/llms/bedrock.py
@@ -204,7 +204,7 @@ def validate_environment(cls, values: Dict) -> Dict:
                 values,
                 "region_name",
                 "AWS_DEFAULT_REGION",
-                default=None,
+                default=session.region_name,
             )
 
             client_params = {}