diff --git a/tljh/requirements-hub-env.txt b/tljh/requirements-hub-env.txt
index 81d694a..9b6fada 100644
--- a/tljh/requirements-hub-env.txt
+++ b/tljh/requirements-hub-env.txt
@@ -8,8 +8,8 @@
 # If a dependency is bumped to a new major version, we should make a major
 # version release of tljh.
 #
-jupyterhub>=4.0.0,<5
-jupyterhub-systemdspawner>=0.17.0,<1
+jupyterhub>=4.0.1,<5
+jupyterhub-systemdspawner>=1.0.1,<2
 jupyterhub-firstuseauthenticator>=1.0.0,<2
 jupyterhub-nativeauthenticator>=1.2.0,<2
 jupyterhub-ldapauthenticator>=1.3.2,<2
diff --git a/tljh/user_creating_spawner.py b/tljh/user_creating_spawner.py
index a08f24c..eda9642 100644
--- a/tljh/user_creating_spawner.py
+++ b/tljh/user_creating_spawner.py
@@ -26,8 +26,10 @@ class UserCreatingSpawner(SystemdSpawner):
         user.ensure_user(system_username)
         user.ensure_user_group(system_username, "jupyterhub-users")
         if self.user.admin:
+            self.disable_user_sudo = False
             user.ensure_user_group(system_username, "jupyterhub-admins")
         else:
+            self.disable_user_sudo = True
             user.remove_user_group(system_username, "jupyterhub-admins")
         if self.user_groups:
             for group, users in self.user_groups.items():