diff --git a/requirements.txt b/requirements.txt
index 79829fe..b9e9f8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ matplotlib==3.1.1
 mistune==0.8.4
 nbconvert==5.5.0
 nbformat==4.4.0
-notebook==6.0.0
+notebook==6.4.1
 numpy==1.17.0
 opencv-python==4.1.0.25
 pandocfilters==1.4.2