diff --git a/requirements.txt b/requirements.txt
index 3197a1e..a653ceb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ mistune==0.8.4
 more-itertools==7.2.0
 nbconvert==5.6.1
 nbformat==4.4.0
-notebook==6.0.1
+notebook==6.4.1
 numpy==1.17.3
 pandas==0.25.2
 pandocfilters==1.4.2