diff --git a/frozen-requirements.txt b/frozen-requirements.txt
index e8406ba..a280cc3 100644
--- a/frozen-requirements.txt
+++ b/frozen-requirements.txt
@@ -22,7 +22,7 @@ matplotlib==3.1.1
 mistune==0.8.4
 nbconvert==5.6.0
 nbformat==4.4.0
-notebook==6.1.5
+notebook==6.4.10
 numpy==1.17.2
 pandocfilters==1.4.2
 parso==0.5.1