--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@
     # oldest supported NumPy is defined as 1.21.6. We therefore need to force
     # it for this specific configuration. For details, see
     # https://github.com/scipy/scipy/blob/c58b608c83d30800aceee6a4dab5c3464cb1de7d/pyproject.toml#L38-L41
-    "numpy==1.22.3; python_version=='3.10' and platform_system=='Windows' and platform_python_implementation != 'PyPy'",
+    "numpy",
 
     "scipy>=1.5.0",
 ]