diff --git a/dev-requirements.txt b/dev-requirements.txt
index dc3ea69..7122e18 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,7 +1,7 @@
 git+https://github.com/jupyterhub/the-littlest-jupyterhub
 git+https://github.com/plasmabio/tljh-repo2docker
-jupyterhub~=1.5
-notebook
+jupyterhub~=1.4.5
+notebook<7
 pytest
 pytest-aiohttp
 pytest-asyncio
diff --git a/tljh-plasma/setup.py b/tljh-plasma/setup.py
index ce73572..a27caae 100644
--- a/tljh-plasma/setup.py
+++ b/tljh-plasma/setup.py
@@ -6,5 +6,5 @@
     entry_points={"tljh": ["tljh_plasma = tljh_plasma"]},
     packages=find_packages(),
     include_package_data=True,
-    install_requires=["dockerspawner~=12.1", "tljh_repo2docker", "jupyterhub~=1.4"],
+    install_requires=["dockerspawner~=12.1", "tljh_repo2docker", "jupyterhub~=1.4.5", "sqlalchemy<2"],
 )