diff --git a/requirements.txt b/requirements.txt
index ac211e2..f4e1ca0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ mistune==0.8.4
 more-itertools==8.0.2
 nbconvert==5.6.1
 nbformat==4.4.0
-notebook==6.0.2
+notebook==6.4.12
 pandocfilters==1.4.2
 parso==0.5.2
 pickleshare==0.7.5