diff --git a/.ci/osx_ci.sh b/.ci/osx_ci.sh
deleted file mode 100644
index 8cdd1ac..0000000
--- a/.ci/osx_ci.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-set -e -x
-
-arm64_set_path_and_python_version(){
-  python_version="$1"
-  if [[ $(/usr/bin/arch) = arm64 ]]; then
-      export PATH=/opt/homebrew/bin:$PATH
-      eval "$(pyenv init --path)"
-      pyenv install $python_version -s
-      pyenv global $python_version
-      export PATH=$(pyenv prefix)/bin:$PATH
-  fi
-}
\ No newline at end of file
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 380e01b..956bb28 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -26,12 +26,13 @@ jobs:
             python: "3.7"
           - runs_on: apple-silicon-m1
             python: "3.8"
+          - runs_on: apple-silicon-m1
+            python: "3.9"
     steps:
     - uses: actions/checkout@v2
+
     - name: Set up Python ${{ matrix.python }}
-      # Needs to be skipped on our self-hosted runners tagged as 'apple-silicon-m1'
-      if: ${{ matrix.runs_on  != 'apple-silicon-m1' }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
 
@@ -40,15 +41,11 @@ jobs:
 
     - name: Install project
       run: |
-        source .ci/osx_ci.sh
-        arm64_set_path_and_python_version ${{ matrix.python }}
         pip install cython pytest
         pip install .
 
     - name: Test with pytest
       run: |
-        source .ci/osx_ci.sh
-        arm64_set_path_and_python_version ${{ matrix.python }}
         make test_lib
         make
         make tests