diff --git a/tljh/requirements-base.txt b/tljh/requirements-base.txt
index 5681d60..fba4b61 100644
--- a/tljh/requirements-base.txt
+++ b/tljh/requirements-base.txt
@@ -3,7 +3,7 @@
 
 # JupyterHub + notebook package are base requirements for user environment
 jupyterhub==1.2.*
-notebook==6.1.*
+notebook==6.1.5
 # Install additional notebook frontends!
 jupyterlab==2.*
 nteract-on-jupyter==2.1.*