diff --git a/requirements.txt b/requirements.txt
index 7312d22..383e1ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ munch==2.0.4
 nbconvert==4.2.0
 nbformat==4.0.1
 netCDF4==1.2.4
-notebook==5.5.0
+notebook==6.4.12
 numpy==1.11.1
 pandas==0.18.1
 pexpect==4.0.1