diff --git a/requirements.txt b/requirements.txt
index 1c6cb35..91b6003 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ gradio==4.15.0
 unstructured[pdf]==0.15.0
 onnxruntime==1.18.0
 tesseract==0.1.3
-nltk==3.8.1
+nltk==3.9