diff --git a/Replicating_Phenomizer_Results/requirements.txt b/Replicating_Phenomizer_Results/requirements.txt
index 9de034d..7a57298 100644
--- a/Replicating_Phenomizer_Results/requirements.txt
+++ b/Replicating_Phenomizer_Results/requirements.txt
@@ -26,7 +26,7 @@ mistune==0.8.4
 mwoauth==0.3.2
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.4
+notebook==6.4.12
 numpy==1.15.4
 oauthlib==2.1.0
 pandas==0.23.4