diff --git a/requirements.txt b/requirements.txt
index 2c0121e..f3dc0fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
 nose==1.3.7
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.5
 packaging==20.4
 pandocfilters==1.4.2