diff --git a/jupyter_example/requirements.txt b/jupyter_example/requirements.txt
index d1d49bd..9dad3c3 100644
--- a/jupyter_example/requirements.txt
+++ b/jupyter_example/requirements.txt
@@ -27,7 +27,7 @@ mistune==0.8.4
 mizani==0.6.0
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.4
 packaging==20.4
 palettable==3.3.0
diff --git a/requirements.txt b/requirements.txt
index d1d49bd..9dad3c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ mistune==0.8.4
 mizani==0.6.0
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.0.3
+notebook==6.4.1
 numpy==1.18.4
 packaging==20.4
 palettable==3.3.0