diff --git a/jupyterhub/Dockerfile b/jupyterhub/Dockerfile
index 8bf6b29..8b0c4ab 100644
--- a/jupyterhub/Dockerfile
+++ b/jupyterhub/Dockerfile
@@ -1,5 +1,5 @@
 # The version here MUST match the z2jh chart version
 # URL: https://hub.jupyter.org/helm-chart/
-FROM jupyterhub/k8s-hub:3.3.8
+FROM jupyterhub/k8s-hub:4.1.0
 
 COPY config/jupyterhub_config.py /usr/local/etc/jupyterhub/jupyterhub_config.d/