diff --git a/requirements.txt b/requirements.txt
index f3a6035..aa94b83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ mistune==0.8.4
 nbconvert==5.4.1
 nbformat==4.4.0
 networkx==2.3
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.16.2
 opencv-python==4.1.0.25
 pandocfilters==1.4.2