diff --git a/requirements.txt b/requirements.txt
index f63bb82..93b5a42 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ matplotlib==1.5.1
 mistune==0.7.2
 nbconvert==4.1.0
 nbformat==4.0.1
-notebook==4.1.0
+notebook==6.4.12
 numpy==1.11.0
 pandas==0.18.0
 path.py==8.1.2