diff --git a/requirements.txt b/requirements.txt
index 12be9fe..2971f42 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -98,7 +98,7 @@ nbformat==4.4.0
 networkx==2.1
 nltk==3.3
 nose==1.3.7
-notebook==5.6.0
+notebook==6.1.5
 numba==0.39.0
 numexpr==2.6.8
 numpy==1.15.1