diff --git a/requirements.txt b/requirements.txt
index cda8a40..e404a19 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ mistune==0.8.4
 more-itertools==7.2.0
 nbconvert==5.6.0
 nbformat==4.4.0
-notebook==6.0.1
+notebook==6.4.1
 pandocfilters==1.4.2
 parso==0.5.1
 pexpect==4.7.0