diff --git a/philly/MISC/requirements.txt b/philly/MISC/requirements.txt
index c2ed3d5..65cb3c8 100644
--- a/philly/MISC/requirements.txt
+++ b/philly/MISC/requirements.txt
@@ -79,7 +79,7 @@ msal-extensions==0.2.2
 msrest==0.6.19
 msrestazure==0.6.4
 ndg-httpsclient==0.5.1
-nltk==3.5
+nltk==3.6.5
 ntlm-auth==1.5.0
 numpy==1.19.4
 oauthlib==3.1.0