Keep NumPy 1.20 for Python 3.9/aarch64 in Wheel Requirements
@@ -4,7 +4,8 @@ numpy==1.17.* ; python_version == "3.8" and platform_machine !='aarch64'
numpy==1.19.4 ; python_version == "3.9" and platform_machine !='aarch64'
# NOTE: oldest-supported-numpy (1.19.2) had forward ABI compat problems
-numpy==1.21.*
+numpy==1.20.* ; python_version < "3.10" and platform_machine=='aarch64'
+numpy==1.21.* ; python_version >= "3.10"
#-------------------------------
# Note 11/23/2021: the current version of the AWS sdk does not work with cmake 3.22
