diff --git a/requirements.txt b/requirements.txt
index 082617c..4ad8020 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ MarkupSafe==1.1.1
 mistune==0.8.4
 nbconvert==5.5.0
 nbformat==4.4.0
-notebook==6.0.0
+notebook==6.4.1
 numpy==1.16.4
 pandas==0.25.0
 pandocfilters==1.4.2