diff --git a/requirements_py3_safvenv.txt b/requirements_py3_safvenv.txt
index 9d6c1cc..249729e 100644
--- a/requirements_py3_safvenv.txt
+++ b/requirements_py3_safvenv.txt
@@ -23,7 +23,7 @@ matplotlib==3.2.1
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.0.3
+notebook==6.4.12
 numpy==1.18.4
 packaging==20.4
 pandas==1.0.3