diff --git a/.github/workflows/cpython.yml b/.github/workflows/cpython.yml
deleted file mode 100644
index 782f88a..0000000
--- a/.github/workflows/cpython.yml
+++ /dev/null
@@ -1,83 +0,0 @@
-name: CPython
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          - python-version: 2.7
-            pep-425-tag: cp27-cp27mu
-            # we build for "wide-unicode" CPython 2.7, which is prevalent among
-            # most Linux distributions. See https://github.com/pypa/manylinux
-
-          - python-version: 3.5
-            pep-425-tag: cp35-cp35m
-
-          - python-version: 3.6
-            pep-425-tag: cp36-cp36m
-
-          - python-version: 3.7
-            pep-425-tag: cp37-cp37m
-
-          - python-version: 3.8
-            pep-425-tag: cp38-cp38
-
-          - python-version: 3.9
-            pep-425-tag: cp39-cp39
-
-    name: Python ${{ matrix.python-version }}
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Setup Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-          architecture: x64
-
-      - name: Install test dependencies
-        run: pip install flake8 pytest twine
-
-      - name: Flake8
-        # stop the build if there are Python syntax errors or undefined names
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        run: |
-          flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-
-      - name: Build python-snappy manylinux wheels
-        uses: RalfG/python-wheels-manylinux-build@v0.3.3-manylinux2010_x86_64
-        with:
-          python-versions: ${{ matrix.pep-425-tag }}
-          system-packages: "snappy-devel"
-
-      - name: Install python-snappy wheel
-        # manylinux1 offers broader compatibility than manylinux2010 or manylinux2014
-        run: |
-          pip install dist/python_snappy*-manylinux1*.whl
-
-      - name: Clean up sources
-        # this cleans up the sources to make sure `import snappy` uses the wheel
-        # an alternative would be to run pytest in a different working directory
-        run: rm -rf setup.py ./snappy
-
-      - name: Pytest
-        run: pytest --verbose test_snappy.py
-
-      - name: Archive wheels
-        uses: actions/upload-artifact@v2
-        with:
-          name: python_snappy-${{ matrix.pep-425-tag }}-manylinux
-          path: dist/python_snappy*-manylinux1*.whl
-
-      - name: Publish wheels to PyPI
-        if: startsWith(github.ref, 'refs/tags/0.')
-        env:
-          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
-          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
-        run: |
-          twine upload dist/python_snappy*-manylinux1*.whl
diff --git a/.github/workflows/pypy.yml b/.github/workflows/pypy.yml
index 0a7804f..a0295b1 100644
--- a/.github/workflows/pypy.yml
+++ b/.github/workflows/pypy.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Install libsnappy-dev
         run: sudo apt-get install libsnappy-dev
 
-      # Flake8 is already run in CPython workflow, so we don't run it here.
+      # Flake8 is already run in Source Distribution (sdist) workflow, so we don't run it here.
 
       - name: Install python-snappy from source
         run: pip install -e .