diff --git a/litellm/llms/bedrock_httpx.py b/litellm/llms/bedrock_httpx.py
index c895679f16a..99e2a8ffe41 100644
--- a/litellm/llms/bedrock_httpx.py
+++ b/litellm/llms/bedrock_httpx.py
@@ -307,6 +307,7 @@ class BedrockLLM(BaseLLM):
                 sts_client = boto3.client(
                     "sts",
                     region_name=aws_region_name,
+                    endpoint_url=f"https://sts.{aws_region_name}.amazonaws.com"
                 )
 
                 # https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithWebIdentity.html