diff --git a/pyproject.toml b/pyproject.toml
deleted file mode 100644
index ba04c53..0000000
--- a/pyproject.toml
+++ /dev/null
@@ -1,3 +0,0 @@
-[build-system]
-requires = ["jupyter_packaging~=0.7.9", "jupyterlab~=3.0", "setuptools>=40.8.0", "wheel"]
-build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index c43fd1d..82b53a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,3 @@ jupyter>=1.0.0
 notebook>=4.0.0
 ipywidgets>=7.0.0
 jupyterlab 
-jupyter-packaging
\ No newline at end of file