--- a/.github/workflows/buildwheels.yml	Wed Sep 29 11:54:42 2021 +0100
+++ b/.github/workflows/buildwheels.yml	Thu Sep 30 08:30:38 2021 +0100
@@ -50,6 +50,12 @@
       # Used to host cibuildwheel
       - uses: actions/setup-python@v2
 
+      - name: Set up QEMU
+        if: runner.os == 'Linux'
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+
       - name: Install cibuildwheel
         run: |
           python -m pip install 'cibuildwheel==2.2.0a1'
@@ -58,7 +64,7 @@
       - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
         env:
-          #CIBW_ARCHS_LINUX: auto aarch64 #seems to hang
+          CIBW_ARCHS_LINUX: auto aarch64 #needs quemu setup
           CIBW_ARCHS_MACOS: x86_64 arm64 universal2
 
       - name: upload wheels

--- a/setup.py	Wed Sep 29 11:54:42 2021 +0100
+++ b/setup.py	Thu Sep 30 08:30:38 2021 +0100
@@ -94,6 +94,7 @@
 			license=license,
 			ext_modules = EXT_MODULES,
 			package_data = {'': ['pyRXP-license.txt']},
+            python_requires='>=3.6, <4',
             classifiers = [
 				'Development Status :: 5 - Production/Stable',
 				'Intended Audience :: Developers',
@@ -105,5 +106,11 @@
 				'Operating System :: Microsoft :: Windows',
 				'Topic :: Software Development :: Libraries :: Python Modules',
 				'Topic :: Text Processing :: Markup :: XML',
+                'Programming Language :: Python :: 3',
+                'Programming Language :: Python :: 3.6',
+                'Programming Language :: Python :: 3.7',
+                'Programming Language :: Python :: 3.8',
+                'Programming Language :: Python :: 3.9',
+                'Programming Language :: Python :: 3.10',
                 ]
 			)