diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..86bb4c1
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+# Minimum requirements for the build system to execute.
+requires = ["Cython==0.29.14", "setuptools>=32.0.0"]