diff --git a/requirements.txt b/requirements.txt
index 7d1aeba..101487d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,7 +79,7 @@ nbformat==4.2.0
 networkx==1.11
 nltk==3.2.2
 nose==1.3.7
-notebook==4.3.1
+notebook==6.1.5
 numba==0.31.0
 numexpr==2.6.2
 numpy==1.12.1