diff --git a/matplot-lib/requirements.txt b/matplot-lib/requirements.txt
index a7e3227..185a3bf 100644
--- a/matplot-lib/requirements.txt
+++ b/matplot-lib/requirements.txt
@@ -10,7 +10,7 @@ mistune==0.8.4
 munch==2.3.2
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==6.4.1
+notebook==6.4.12
 numpy==1.21.0
 pandas==0.23.4
 pandoc==1.0.2