diff --git a/requirements.txt b/requirements.txt
index 0f6eda0..1fb47c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ ml-dtypes==0.4.0
 mpmath==1.3.0
 networkx==3.3
 ninja==1.11.1.1
-nltk==3.8.1
+nltk==3.9
 numpy==1.26.4
 opencv-python==4.10.0.84
 opencv-python-headless==4.10.0.84