diff --git a/requirements.txt b/requirements.txt
index 99a8563..31ab18a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ Keras-Preprocessing==1.1.0
 kiwisolver==1.1.0
 Markdown==3.1.1
 matplotlib==3.1.1
-nltk==3.4.4
+nltk==3.4.5
 numpy==1.17.0
 pandas==0.25.0
 protobuf==3.6.0