diff --git a/requirements.txt b/requirements.txt
index 71ac4cb..57ca368 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ mistune==0.8.3
 nbconvert==5.4.0
 nbformat==4.4.0
 nbstripout==0.3.3
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.15.2
 pandas==0.23.4
 pandocfilters==1.4.2