diff --git a/requirements.txt b/requirements.txt
index c3cfe87..22aa4e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ matplotlib==3.0.3
 mistune==0.8.4
 nbconvert==5.5.0
 nbformat==4.4.0
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.16.3
 pandocfilters==1.4.2
 parso==0.4.0