diff --git a/requirements.txt b/requirements.txt
index e8944cd..6760a13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Keras==2.3.1
 matplotlib==3.1.1
 pandas==0.25.2
 tensorflow==2.11.1
-nltk==3.4.5
+nltk==3.9.2
 jupyter_core==4.6.1
 jupyter==1.0.0
 scikit_learn==0.23.2