diff --git a/requirements.txt b/requirements.txt
index a27175b..1a7051b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -137,7 +137,7 @@ nbformat==5.10.4
 nest-asyncio==1.6.0
 networkx==3.3
 ninja==1.11.1.1
-nltk==3.8.2
+nltk==3.9
 notebook==7.2.0
 notebook-shim==0.2.4
 numpy==1.26.4