diff --git a/requirements.txt b/requirements.txt
index 8b7701c..6cd89cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-nltk==3.6.5
+nltk==3.6.6
 numpy==1.21.4
 prettytable==2.4.0
 pyttsx3==2.90