diff --git a/requirements.txt b/requirements.txt
index 52de3fc..274f239 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ mkl-random==1.1.0
 mkl-service==2.3.0
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.4.1
+notebook==6.4.12
 numpy==1.21.0
 olefile==0.46
 pandocfilters==1.4.2