diff --git a/tools/ci_build/github/azure-pipelines/templates/py-packaging-stage.yml b/tools/ci_build/github/azure-pipelines/templates/py-packaging-stage.yml
index 6f67f72c97..fac33f5d4e 100644
--- a/tools/ci_build/github/azure-pipelines/templates/py-packaging-stage.yml
+++ b/tools/ci_build/github/azure-pipelines/templates/py-packaging-stage.yml
@@ -334,7 +334,7 @@ stages:
       pool:
         vmImage: 'macOS-11'
       variables:
-        MACOSX_DEPLOYMENT_TARGET: '10.14'
+        MACOSX_DEPLOYMENT_TARGET: '10.15'
       strategy:
         matrix:
           Python37:
@@ -366,6 +366,7 @@ stages:
           export PATH=$(Build.BinariesDirectory)/installed/bin:$PATH
           export ONNX_ML=1
           export CMAKE_ARGS="-DONNX_GEN_PB_TYPE_STUBS=OFF -DONNX_WERROR=OFF"
+          export _PYTHON_HOST_PLATFORM=macosx-${{variables.MACOSX_DEPLOYMENT_TARGET}}-x86_64
           python3 -m pip install -r '$(Build.SourcesDirectory)/tools/ci_build/github/linux/docker/scripts/requirements.txt'
           sudo xcode-select --switch /Applications/Xcode_12.4.app/Contents/Developer
           python3 $(Build.SourcesDirectory)/tools/ci_build/build.py --build_dir $(Build.BinariesDirectory) --skip_submodule_sync --parallel --config Release --skip_onnx_tests --build_wheel ${{ parameters.build_py_parameters }}
@@ -433,6 +434,7 @@ stages:
           export PATH=$(Build.BinariesDirectory)/installed/bin:$PATH
           export ONNX_ML=1
           export CMAKE_ARGS="-DONNX_GEN_PB_TYPE_STUBS=OFF -DONNX_WERROR=OFF"
+          export _PYTHON_HOST_PLATFORM=macosx-${{variables.MACOSX_DEPLOYMENT_TARGET}}-arm64
           python3 -m pip install -r '$(Build.SourcesDirectory)/tools/ci_build/github/linux/docker/scripts/requirements.txt'
           sudo xcode-select --switch /Applications/Xcode_12.4.app/Contents/Developer
           python3 $(Build.SourcesDirectory)/tools/ci_build/build.py --build_dir $(Build.BinariesDirectory) --skip_submodule_sync --parallel --config Release --skip_tests --cmake_extra_defines CMAKE_OSX_ARCHITECTURES=arm64 --build_wheel ${{ parameters.build_py_parameters }}