diff --git a/requirements.txt b/requirements.txt
index fb7b5288..d2bcff8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 numpy==1.16.6
 pandas==0.24.2
-nltk==3.4.1
+nltk==3.4.5
 gensim==3.8.0
 bs4==0.0.1
 beautifulsoup4==4.8.0