diff --git a/requirements.txt b/requirements.txt
index 60e8724..16afdbb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ cycler==0.11.0
 idna==3.7
 kiwisolver==1.4.4
 matplotlib==3.6.1
-nltk==3.9
+nltk==3.9.3
 numpy==1.23.4
 oauthlib==3.2.2
 pyparsing==3.0.9