diff --git a/requirements.txt b/requirements.txt
index 11f5948..e6ec0fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ murmurhash==1.0.2
 nbconvert==5.6.0
 nbformat==4.4.0
 netifaces==0.10.4
-nltk==3.4.4
+nltk==3.4.5
 notebook==6.0.0
 numpy==1.17.0
 oauth==1.0.1