diff --git a/.github/workflows/build-majestic.yml b/.github/workflows/build-majestic.yml
index 8586436e7..0f7bc1a39 100644
--- a/.github/workflows/build-majestic.yml
+++ b/.github/workflows/build-majestic.yml
@@ -281,3 +281,37 @@ jobs:
           ${{runner.temp}}/msys64/mingw64/bin/libwinpthread-1.dll
           ${{runner.temp}}/msys64/mingw64/lib/libpgf*
           ${{runner.temp}}/msys64/mingw64/include/pgf
+
+  upload_pypi:
+    name: Upload to PyPI
+    needs: [linux-python, macos-python]
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/majestic' && github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
+      - name: Install twine
+        run: pip install twine
+
+      - uses: actions/download-artifact@v2
+        with:
+          name: python-linux
+          path: ./dist
+
+      - uses: actions/download-artifact@v2
+        with:
+          name: python-macos
+          path: ./dist
+
+      - name: Publish
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.pypi_password }}
+        run: |
+          (cd ./src/runtime/python && curl -I --fail https://pypi.org/project/$(python setup.py --name)/$(python setup.py --version)/) || twine upload dist/*