diff --git a/requirements.txt b/requirements.txt
index 788f117..8963831 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ mimerender==0.6.0
 MySQL-python==1.2.5
 Naked==0.1.31
 newsapi-python==0.2.3
-nltk==3.2.5
+nltk==3.4.5
 oauth2==1.9.0.post1
 Pillow==5.0.0
 psycopg2==2.7.3.2