diff --git a/requirements.dev.txt b/requirements.dev.txt
index 9121d63..cad7791 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -56,7 +56,7 @@ mypy-extensions==0.4.3
 nbconvert==5.6.1
 nbformat==5.0.7
 nodeenv==1.4.0
-notebook==6.0.3
+notebook==6.4.12
 packaging==20.4
 pandocfilters==1.4.2
 parso==0.7.0