diff --git a/requirements.txt b/requirements.txt
index 90f4bbe..2c9ad81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ jupyterlab==0.35.4
 mistune==0.8.4
 nbconvert==5.4.1
 nbformat==4.4.0
-notebook==5.7.8
+notebook==6.4.12
 pandocfilters==1.4.2
 parso==0.3.4
 pickleshare==0.7.5