diff --git a/requirements.txt b/requirements.txt
index 2f54f51..c5e0734 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 scikit-learn==1.5.0
 pandas==0.22
 daiquiri==1.5
-nltk==3.9
+nltk==3.9.3
 numpy==1.22.0
 pymongo==4.6.3
 six==1.11.0