diff --git a/lambda/aws-summarization-appsync-stepfn/summary_generator/helper.py b/lambda/aws-summarization-appsync-stepfn/summary_generator/helper.py
index 182ad1af..b957cff0 100644
--- a/lambda/aws-summarization-appsync-stepfn/summary_generator/helper.py
+++ b/lambda/aws-summarization-appsync-stepfn/summary_generator/helper.py
@@ -13,7 +13,6 @@
 import base64
 from enum import Enum
 import os
-import nltk
 import boto3
 import tempfile
 from aws_lambda_powertools import Logger, Tracer
diff --git a/lambda/aws-summarization-appsync-stepfn/summary_generator/requirements.txt b/lambda/aws-summarization-appsync-stepfn/summary_generator/requirements.txt
index 89a8386e..53f5542b 100644
--- a/lambda/aws-summarization-appsync-stepfn/summary_generator/requirements.txt
+++ b/lambda/aws-summarization-appsync-stepfn/summary_generator/requirements.txt
@@ -5,7 +5,6 @@ requests==2.32.0
 requests-aws4auth==1.2.3
 langchain==0.2.5
 langchain-community==0.2.5
-nltk==3.8.1
 urllib3<2
 aws-lambda-powertools
 aws-xray-sdk