diff --git a/hub/values.yaml b/hub/values.yaml
index fe63ee00a..fd5ae1a74 100644
--- a/hub/values.yaml
+++ b/hub/values.yaml
@@ -44,6 +44,11 @@ jupyterhub:
       # https://z2jh.jupyter.org/en/latest/resources/reference.html#proxy-chp-extrapodspec
       # https://kubernetes.io/docs/reference/kubernetes-api/workload-resources/pod-v1/#PodSpec
       #
+      extraPodSpec:
+        securityContext:
+          sysctls:
+          - name: net.ipv4.ip_local_port_range
+            value: "10000 65000"
       image:
         tag: 4.6.2
       # extraCommandLineFlags: