diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cf118d2..6a44687 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.8", "3.9", "3.10"]
-        jupyterhub-version: [latest, 1.2.2]
 
     steps:
     - uses: actions/checkout@v2
@@ -32,10 +31,6 @@ jobs:
         python -m pip install --upgrade pip setuptools
         python -m pip install -r dev-requirements.txt
         python -m pip install -e .
-    - name: Downgrade jupyterhub
-      if: ${{ matrix.jupyterhub-version != 'latest' }}
-      run: |
-        python -m pip install -U 'jupyterhub==${{ matrix.jupyterhub-version }}'
     - name: Run Tests
       run: |
         python -m pytest --cov
diff --git a/README.md b/README.md
index d61fb3c..1c4cc94 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@
 
 TLJH plugin to build and use Docker images as user environments. The Docker images are built using [`repo2docker`](https://repo2docker.readthedocs.io/en/latest/).
 
+## Requirements
+
+This plugin requires [The Littlest JupyterHub](https://tljh.jupyter.org) 1.0 or later (running on JupyterHub 4+).
+
 ## Installation
 
 During the [TLJH installation process](http://tljh.jupyter.org/en/latest/install/index.html), use the following post-installation script:
@@ -20,9 +24,10 @@ sudo apt update && sudo apt install -y docker-ce
 # pull the repo2docker image
 sudo docker pull quay.io/jupyterhub/repo2docker:main
 
-# install TLJH
-curl https://raw.githubusercontent.com/jupyterhub/the-littlest-jupyterhub/master/bootstrap/bootstrap.py \
+# install TLJH 1.0
+curl https://tljh.jupyter.org/bootstrap.py
   | sudo python3 - \
+    --version 1.0.0 \
     --admin test:test \
     --plugin git+https://github.com/plasmabio/tljh-repo2docker@master
 ```
@@ -30,7 +35,6 @@ curl https://raw.githubusercontent.com/jupyterhub/the-littlest-jupyterhub/master
 Refer to [The Littlest JupyterHub documentation](http://tljh.jupyter.org/en/latest/topic/customizing-installer.html?highlight=plugins#installing-tljh-plugins)
 for more info on installing TLJH plugins.
 
-
 ## Usage
 
 ### List the environments
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 4a0a7e6..5a9414a 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,8 +1,8 @@
-git+https://github.com/jupyterhub/the-littlest-jupyterhub
-jupyterhub~=1.5
-notebook<7
+git+https://github.com/jupyterhub/the-littlest-jupyterhub@1.0.0
+jupyterhub>=4,<5
 pytest
 pytest-aiohttp
 pytest-asyncio
 pytest-cov
+pytest-jupyterhub
 requests-mock
diff --git a/pyproject.toml b/pyproject.toml
index cfcdd81..4436659 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,8 +10,7 @@ license = { file = "LICENSE" }
 dependencies = [
     "aiodocker~=0.19",
     "dockerspawner~=12.1",
-    "jupyter_client~=6.1",
-    "sqlalchemy<2",
+    "jupyter_client>=6.1,<8"
 ]
 
 [project.entry-points.tljh]
diff --git a/pytest.ini b/pytest.ini
index 0ee949b..faf59a4 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,2 +1,3 @@
 [pytest]
 python_files = test_*.py
+asyncio_mode = auto
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 54ce4b7..aefdf20 100644
--- a/setup.py
+++ b/setup.py
@@ -1 +1 @@
-__import__("setuptools").setup()
\ No newline at end of file
+__import__("setuptools").setup()
diff --git a/tljh_repo2docker/builder.py b/tljh_repo2docker/builder.py
index fbef6d3..083b799 100644
--- a/tljh_repo2docker/builder.py
+++ b/tljh_repo2docker/builder.py
@@ -3,7 +3,7 @@
 
 from aiodocker import Docker, DockerError
 from jupyterhub.apihandlers import APIHandler
-from jupyterhub.utils import admin_only
+from jupyterhub.scopes import needs_scope
 from tornado import web
 
 from .docker import build_image
@@ -17,7 +17,7 @@ class BuildHandler(APIHandler):
     """
 
     @web.authenticated
-    @admin_only
+    @needs_scope('admin-ui')
     async def delete(self):
         data = self.get_json_body()
         name = data["name"]
@@ -31,7 +31,7 @@ async def delete(self):
         self.finish(json.dumps({"status": "ok"}))
 
     @web.authenticated
-    @admin_only
+    @needs_scope('admin-ui')
     async def post(self):
         data = self.get_json_body()
         repo = data["repo"]
diff --git a/tljh_repo2docker/images.py b/tljh_repo2docker/images.py
index df1be13..ddceeb3 100644
--- a/tljh_repo2docker/images.py
+++ b/tljh_repo2docker/images.py
@@ -1,6 +1,6 @@
 from inspect import isawaitable
 from jupyterhub.handlers.base import BaseHandler
-from jupyterhub.utils import admin_only
+from jupyterhub.scopes import needs_scope
 from tornado import web
 
 from .docker import list_containers, list_images
@@ -12,7 +12,7 @@ class ImagesHandler(BaseHandler):
     """
 
     @web.authenticated
-    @admin_only
+    @needs_scope('admin-ui')
     async def get(self):
         images = await list_images()
         containers = await list_containers()
diff --git a/tljh_repo2docker/logs.py b/tljh_repo2docker/logs.py
index e431412..7c87e16 100644
--- a/tljh_repo2docker/logs.py
+++ b/tljh_repo2docker/logs.py
@@ -2,9 +2,8 @@
 
 from aiodocker import Docker
 from jupyterhub.apihandlers import APIHandler
-from jupyterhub.utils import admin_only
+from jupyterhub.scopes import needs_scope
 from tornado import web
-from tornado.ioloop import IOLoop
 from tornado.iostream import StreamClosedError
 
 
@@ -13,7 +12,7 @@ class LogsHandler(APIHandler):
     Expose a handler to follow the build logs.
     """
     @web.authenticated
-    @admin_only
+    @needs_scope('admin-ui')
     async def get(self, name):
         self.set_header("Content-Type", "text/event-stream")
         self.set_header("Cache-Control", "no-cache")
diff --git a/tljh_repo2docker/tests/conftest.py b/tljh_repo2docker/tests/conftest.py
index 1155930..5b7ee87 100644
--- a/tljh_repo2docker/tests/conftest.py
+++ b/tljh_repo2docker/tests/conftest.py
@@ -1,25 +1,8 @@
-import asyncio
-import os
-import sys
-
 import pytest
 
 from aiodocker import Docker, DockerError
-from jupyterhub.tests.conftest import (
-    io_loop,
-    event_loop,
-    db,
-    pytest_collection_modifyitems,
-)
-from jupyterhub.tests.mocking import MockHub
 from tljh_repo2docker import tljh_custom_jupyterhub_config
-from traitlets import Bunch
-
-class DummyConfig:
-    def __getattr__(self, k):
-        if k not in self.__dict__:
-            self.__dict__[k] = Bunch()
-        return self.__dict__[k]
+from traitlets.config import Config
 
 
 async def remove_docker_image(image_name):
@@ -50,43 +33,17 @@ def image_name():
     return "tljh-repo2docker-test:HEAD"
 
 
-@pytest.fixture(scope='module')
-def app(request, io_loop):
-    """
-    Adapted from:
-    https://github.com/jupyterhub/jupyterhub/blob/8a3790b01ff944c453ffcc0486149e2a58ffabea/jupyterhub/tests/conftest.py#L74
-    """
-
-    mocked_app = MockHub.instance()
-    c = DummyConfig()
-    c.JupyterHub = mocked_app
-    tljh_custom_jupyterhub_config(c)
-
-    async def make_app():
-        await mocked_app.initialize([])
-        await mocked_app.start()
-
-    def fin():
-        # disconnect logging during cleanup because pytest closes captured FDs prematurely
-        mocked_app.log.handlers = []
-        MockHub.clear_instance()
-        try:
-            mocked_app.stop()
-        except Exception as e:
-            print("Error stopping Hub: %s" % e, file=sys.stderr)
+@pytest.fixture
+async def app(hub_app):
+    config = Config()
+    tljh_custom_jupyterhub_config(config)
 
-    request.addfinalizer(fin)
-    io_loop.run_sync(make_app)
-    return mocked_app
+    app = await hub_app(config=config)
+    return app
 
 
 @pytest.fixture(autouse=True)
-def remove_all_test_images(image_name, generated_image_name, io_loop):
-    try:
-        yield
-    finally:
-        async def _clean():
-            await remove_docker_image(image_name)
-            await remove_docker_image(generated_image_name)
-
-        io_loop.run_sync(_clean)
+async def remove_all_test_images(image_name, generated_image_name, app):
+    yield
+    await remove_docker_image(image_name)
+    await remove_docker_image(generated_image_name)