diff --git a/FastAPI-server/requirements.txt b/FastAPI-server/requirements.txt
index 677ee74..af761d0 100644
--- a/FastAPI-server/requirements.txt
+++ b/FastAPI-server/requirements.txt
@@ -1,6 +1,6 @@
 fastapi==0.111.0
 joblib==1.3.2
-nltk==3.8.1
+nltk==3.9
 pandas==2.2.2
 pydantic==2.8.0
 scikit_learn==1.4.1.post1