diff --git a/requirements.txt b/requirements.txt
index c6cb35d..cb36a77 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ coverage==7.4.1
 Flask==3.0.2
 flask[async]
 en-core-web-trf @ https://github.com/explosion/spacy-models/releases/download/en_core_web_trf-3.7.3/en_core_web_trf-3.7.3-py3-none-any.whl#sha256=f72abb34bdf174876bd4267b29b2501677e605e0a251fdc56c163003182ed68b
-nltk==3.8.1
+nltk==3.9
 opensearch_py==2.4.2
 python-dotenv==1.0.1
 spacy==3.7.4