diff --git a/requirements.txt b/requirements.txt
index bc09bc1..998cfd0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ mistune==0.8.4
 nbconvert==5.4.0
 nbformat==4.4.0
 nltk==3.4
-notebook==5.7.4
+notebook==6.4.12
 numpy==1.15.4
 opencv-python==3.4.5.20
 pandas==0.23.4