diff --git a/requirements.txt b/requirements.txt
index 2b3bf79..aacdb2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ mccabe==0.6.1
 mistune==0.8.4
 nbconvert==5.4.1
 nbformat==4.4.0
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.16.2
 pandocfilters==1.4.2
 parso==0.4.0