diff --git a/requirements.txt b/requirements.txt
index 8b1f8df..75a7e7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ matplotlib==2.2.2
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.5.0
+notebook==6.4.10
 numpy==1.14.3
 opencv-contrib-python==3.4.1.15
 opencv-python==3.4.1.15