diff --git a/requirements.txt b/requirements.txt
index d6dd56c..a2b0d9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ matplotlib==3.3.0
 nbconvert==5.6.1
 nbformat==5.0.6
 networkx==2.5
-notebook==6.4.1
+notebook==6.4.12
 numpy==1.19.1
 pandas==1.1.0
 pydot==1.4.1