diff --git a/my_requirements.txt b/my_requirements.txt
index 84d51a2..f088b5d 100644
--- a/my_requirements.txt
+++ b/my_requirements.txt
@@ -114,7 +114,7 @@ navigator-updater==0.2.1
 nbconvert==5.4.0
 nbformat==4.4.0
 networkx==2.2
-nltk==3.3
+nltk==3.4.5
 nose==1.3.7
 notebook==5.7.4
 numpy==1.15.4