diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..9f59221
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,7 @@
+[build-system]
+build-backend = 'setuptools.build_meta'
+requires = [
+    'setuptools >= 40.9.0',
+    'cython',
+    'numpy<2.0',
+    ]