diff --git a/jupyterlab/pyproject.toml b/jupyterlab/pyproject.toml
index 201f68f3..5e5468f3 100644
--- a/jupyterlab/pyproject.toml
+++ b/jupyterlab/pyproject.toml
@@ -5,7 +5,6 @@ build-backend = "hatchling.build"
 [project]
 name = "jupyterlab-optuna"
 readme = "README.md"
-license = { file = "LICENSE" }
 requires-python = ">=3.8"
 classifiers = [
     "Framework :: Jupyter",