diff --git a/requirements.txt b/requirements.txt
index 9588319..a83e3b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ matplotlib==2.2.5
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==4.4.0
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.16.6
 opencv-python==4.2.0.32
 pandocfilters==1.4.2