diff --git a/requirements.txt b/requirements.txt
index 58a418f..bb5c21b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ matplotlib==3.0.2
 mistune==0.8.4
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.2
+notebook==6.4.12
 numpy==1.15.4
 opencv-python==3.4.4.19
 pandocfilters==1.4.2