--- pyproject.toml.orig	2023-11-08 15:10:58 UTC
+++ pyproject.toml
@@ -2,10 +2,8 @@
 requires = [
     "setuptools",
     "scikit-build",
-    "cython>=3",
-    "cmake",
-    "ninja",
-    "oldest-supported-numpy"]
+    "cython",
+]
 
 [project]
 name = "blosc2"