diff --git a/requirements.txt b/requirements.txt
index a676b17..f5aac22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ matplotlib==3.0.3
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.4
 packaging==20.3
 pandocfilters==1.4.2