diff --git a/requirements.txt b/requirements.txt
index 6a289d3..1c11ae9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -97,7 +97,7 @@ 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