--- pyproject.toml.orig	2020-02-02 00:00:00 UTC
+++ pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling>=1.5.0", "jupyterlab>=4.0.0,<5"]
+requires = ["hatchling>=1.5.0"]
 build-backend = "hatchling.build"
 
 [project]