diff --git a/Bike Sharing/first-neural-network/requirements.txt b/Bike Sharing/first-neural-network/requirements.txt
index aac831f..5638e08 100644
--- a/Bike Sharing/first-neural-network/requirements.txt	
+++ b/Bike Sharing/first-neural-network/requirements.txt	
@@ -20,7 +20,7 @@ matplotlib==2.0.0
 mistune==0.7.4
 nbconvert==5.1.1
 nbformat==4.3.0
-notebook==4.4.1
+notebook==6.4.12
 numpy==1.12.1
 packaging==16.8
 pandas==0.19.2