diff --git a/container-optimizer/requirements.txt b/container-optimizer/requirements.txt
index 61c96cf..98d1bb4 100644
--- a/container-optimizer/requirements.txt
+++ b/container-optimizer/requirements.txt
@@ -59,7 +59,7 @@ mpmath==1.1.0
 nbconvert==5.6.1
 nbformat==5.0.4
 networkx==2.4
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.1
 oauthlib==3.1.0
 onnx==1.6.0