diff --git a/requirements.txt b/requirements.txt
index 175e6e6..5f5e60f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -73,7 +73,7 @@ nbimporter==0.3.1
 netifaces==0.10.9
 networkx==2.4
 nni==1.7
-notebook==6.0.2
+notebook==6.4.1
 numba==0.45.1
 numpy==1.16.2
 optuna==1.5.0