diff --git a/setup.cfg b/setup.cfg
index 308d321..840860f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,12 +35,16 @@ install_requires =
     numpy==1.19.2; python_version=='3.7' and platform_machine=='aarch64'
     numpy==1.19.2; python_version=='3.8' and platform_machine=='aarch64'
 
+    # arm64 on Darwin supports Python 3.8 and above requires numpy>=1.20.0
+    numpy==1.20.0; python_version=='3.8' and platform_machine=='arm64' and platform_system=='Darwin'
+    numpy==1.20.0; python_version=='3.9' and platform_machine=='arm64' and platform_system=='Darwin'
+
     # default numpy requirements
     numpy==1.13.3; python_version=='3.5' and platform_machine!='aarch64' and platform_system!='AIX'
     numpy==1.13.3; python_version=='3.6' and platform_machine!='aarch64' and platform_system!='AIX' and platform_python_implementation != 'PyPy'
     numpy==1.14.5; python_version=='3.7' and platform_machine!='aarch64' and platform_system!='AIX' and platform_python_implementation != 'PyPy'
-    numpy==1.17.3; python_version=='3.8' and platform_machine!='aarch64' and platform_python_implementation != 'PyPy'
-    numpy==1.19.3; python_version=='3.9' and platform_python_implementation != 'PyPy'
+    numpy==1.17.3; python_version=='3.8' and (platform_machine!='arm64' or platform_system!='Darwin') and platform_machine!='aarch64' and platform_python_implementation != 'PyPy'
+    numpy==1.19.3; python_version=='3.9' and (platform_machine!='arm64' or platform_system!='Darwin') and platform_python_implementation != 'PyPy'
 
     numpy==1.19.0; python_version=='3.6' and platform_python_implementation=='PyPy'
     numpy==1.20.0; python_version=='3.7' and platform_python_implementation=='PyPy'