diff --git a/aws_bedrock_langchain_python_cdk/aws_bedrock_langchain_python_cdk_stack.py b/aws_bedrock_langchain_python_cdk/aws_bedrock_langchain_python_cdk_stack.py
index 0792ca8..4d424e2 100644
--- a/aws_bedrock_langchain_python_cdk/aws_bedrock_langchain_python_cdk_stack.py
+++ b/aws_bedrock_langchain_python_cdk/aws_bedrock_langchain_python_cdk_stack.py
@@ -1,6 +1,4 @@
 from aws_cdk import (
-    Stack,
-    Duration,
     aws_iam as iam,
     aws_lambda as _lambda,
     aws_lambda_python_alpha as _alambda,
@@ -96,4 +94,4 @@ def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
                                             "reason": "Lambda needs * access to all objects inside S3 bucket. And Bedrock all actions are allowed",
                                             }
                                         ],
-                            apply_to_children=True)
\ No newline at end of file
+                            apply_to_children=True)