diff --git a/requirements.txt b/requirements.txt
index f02b5a3..4af69ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ mccabe==0.6.1
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.7
-notebook==6.0.3
+notebook==6.4.12
 numpy==1.19.0
 packaging==20.4
 pandocfilters==1.4.2