diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1fb2762..3dda3b3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -49,6 +49,8 @@ jobs:
       uses: jrl-umi3218/github-actions/build-cmake-project@master
       with:
         build-type: ${{ matrix.build-type }}
+      env:
+        ARCHFLAGS: "-arch arm64"
     - name: Slack Notification
       if: failure()
       uses: archive/github-actions-slack@master
diff --git a/setup.in.py b/setup.in.py
index 33abc7f..141a6a7 100644
--- a/setup.in.py
+++ b/setup.in.py
@@ -4,13 +4,6 @@
 
 from __future__ import print_function
 
-import pkg_resources
-requirements_file = "@CMAKE_CURRENT_SOURCE_DIR@/requirements.txt"
-with open(requirements_file) as fd:
-  for pkg in fd:
-    pkg = pkg.strip()
-    pkg_resources.require(pkg)
-
 try:
   from setuptools import setup
   from setuptools import Extension
@@ -46,6 +39,12 @@ def GenExtension(name):
   compile_args = ['-std=c++11']
   if win32_build:
       compile_args = ['-DWIN32']
+  elif sys.platform == 'darwin':
+    from platform import machine
+    osx_arch = machine()
+    os.environ["ARCHFLAGS"] = "-arch " + osx_arch
+    compile_args += ["-arch", osx_arch]
+
   return Extension(name, [ext_src], extra_compile_args = compile_args, include_dirs = include_dirs)
 
 extensions = [
@@ -64,10 +63,17 @@ def GenExtension(name):
 
 extensions = cythonize(extensions, cache = True)
 
+dependencies = [
+  "Cython>=0.2",
+  "coverage",
+  "numpy>=1.8.2",
+  "pytest"
+]
+
 setup(
     name = 'eigen',
     version='@PROJECT_VERSION@',
     ext_modules = extensions,
-    packages = packages,
-    package_data = { 'eigen': data }
+    package_data = { 'eigen': data },
+    install_requires=dependencies
 )