diff --git a/requirements.txt b/requirements.txt
index 67d71cb..48b45d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ numpy==1.22.0
 Flask==2.3.2
 flask_wtf==0.14.3
 googletrans==3.0.0
-nltk==3.6.6
+nltk==3.9
 pandas==1.0.4
 scikit-learn==0.21.2
 textblob==0.15.3