diff --git a/requirements.txt b/requirements.txt
index 611fa57..a6acf06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ matplotlib==2.2.3
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.6.0
+notebook==6.1.5
 numpy==1.15.1
 pandas==0.23.4
 pandocfilters==1.4.2