diff --git a/lambda/summarization/summary_generator/requirements.txt b/lambda/summarization/summary_generator/requirements.txt
index 89a8386..31deb4c 100644
--- a/lambda/summarization/summary_generator/requirements.txt
+++ b/lambda/summarization/summary_generator/requirements.txt
@@ -5,7 +5,7 @@ requests==2.32.0
 requests-aws4auth==1.2.3
 langchain==0.2.5
 langchain-community==0.2.5
-nltk==3.8.1
+nltk==3.9
 urllib3<2
 aws-lambda-powertools
 aws-xray-sdk