diff --git a/pyproject.toml b/pyproject.toml
index 7b1b4e933..09da9b86e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = [
     "setuptools>=46.4.0",
     "wheel",
     "Cython>=0.29.21,<3.0",
-    'numpy~=1.21.0',
+    'oldest-supported-numpy',
 ]
 build-backend = "setuptools.build_meta"