diff --git a/requirements.txt b/requirements.txt
index 04d6a2b..3e8acc0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ Keras-Preprocessing==1.1.2
 linecache2==1.0.0
 Markdown==3.1.1
 mock==3.0.5
-nltk==3.4.4
+nltk==3.4.5
 numpy==1.16.6
 oauthlib==3.1.0
 opt-einsum==2.3.2