diff --git a/pyproject.toml b/pyproject.toml
index 16636ec1d..e58ccd16e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,8 @@
 [build-system]
 requires = [
     "Cython>=0.29",
-    "oldest-supported-numpy",
+    "oldest-supported-numpy ; python_version < '3.9'",
+    "numpy>=2.0.0rc1 ; python_version >= '3.9'",
     "setuptools>=61",
 ]
 build-backend = "setuptools.build_meta"