diff --git a/util/requirements.txt b/util/requirements.txt
index 1163887..aa126d1 100644
--- a/util/requirements.txt
+++ b/util/requirements.txt
@@ -13,7 +13,7 @@ panda3d==1.10.5
 aabbtree==2.3.1
 ray==0.8.5
 psutil==5.6.6
-notebook==6.0.3
+notebook==6.4.1
 jupyter==1.0.0
 ipython==7.13.0
 six==1.15.0