diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..997b713f
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,2 @@
+[build-system]
+requires = ["setuptools", "wheel", "Cython", "numpy>=1.16.0,<1.20"]