diff --git a/requirements.txt b/requirements.txt
index 4923223..da5f005 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ matplotlib==3.1.3
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.4
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.1
 pandas==1.0.3
 pandocfilters==1.4.2