diff --git a/mimicri/pyproject.toml b/mimicri/pyproject.toml
index ba04c53..98e488f 100644
--- a/mimicri/pyproject.toml
+++ b/mimicri/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
-requires = ["jupyter_packaging~=0.7.9", "jupyterlab~=3.0", "setuptools>=40.8.0", "wheel"]
+requires = ["jupyter_packaging~=0.12.3", "jupyterlab~=3.0", "setuptools>=40.8.0", "wheel"]
 build-backend = "setuptools.build_meta"