diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..b8dc74d
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,42 @@
+name: Publish Python Package
+
+on:
+  # trigger when publishing a release
+  release:
+    types: [published]
+
+  # also allow triggering this workflow manually for testing
+  workflow_dispatch:
+
+jobs:
+  publish:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        # just fetching 1 commit is not enough for setuptools-scm, so we fetch all
+        fetch-depth: 0
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        pip install setuptools setuptools_scm
+    - name: Build package
+      run: |
+        python setup.py sdist
+        rm dist/*.orig  # clean sdist_upip noise
+    - name: Publish to Test PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+        repository_url: https://test.pypi.org/legacy/
+    - name: Publish to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      if: github.event.release.tag_name  # only when releasing a new version
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/setup.py b/setup.py
index e16ceda..946cc0d 100644
--- a/setup.py
+++ b/setup.py
@@ -2,8 +2,6 @@
 import sdist_upip
 from setuptools import setup
 
-VERSION = "1.0.0"
-
 
 def long_desc_from_readme():
     with open('README.rst', 'r') as fd:
@@ -20,7 +18,9 @@ def long_desc_from_readme():
 
 setup(
     name="micropython-py-esp32-ulp",
-    version=VERSION,
+    use_scm_version={
+        'local_scheme': 'no-local-version',
+    },
     description="Assembler toolchain for the ESP32 ULP co-processor, written in MicroPython",
     long_description=long_desc_from_readme(),
     long_description_content_type='text/x-rst',
@@ -34,6 +34,7 @@ def long_desc_from_readme():
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python :: Implementation :: MicroPython',
     ],
+    setup_requires=['setuptools_scm'],
     platforms=["esp32", "linux", "darwin"],
     cmdclass={"sdist": sdist_upip.sdist},
     packages=["esp32_ulp"],