diff --git a/requirements.txt b/requirements.txt
index 22fdcc1..4f97812 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -96,7 +96,7 @@ nbformat==4.4.0
 networkx==2.1
 nltk==3.3
 nose==1.3.7
-notebook==5.5.0
+notebook==6.1.5
 numba==0.38.0
 numexpr==2.6.5
 numpy==1.14.3