diff --git a/requirements.txt b/requirements.txt
index e18f96e..b85bb23 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,5 +20,5 @@ Werkzeug==1.0.1
 Flask-Classful==0.14.2
 Unidecode==1.1.2
 spacy==2.3.5
-nltk==3.5
+nltk==3.6.5
 pandarallel==1.5.2
\ No newline at end of file