diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..36634d5f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,77 @@
+name: CI
+
+on:
+  push:
+
+jobs:
+  superlegacy:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    strategy:
+      matrix:
+        python-version: [2.6, 3.3, 3.4]
+        include:
+          - python-version: 2.6
+            image: cronosmobi/python2.6
+          - python-version: 3.3
+            image: python:3.3
+          - python-version: 3.4
+            image: python:3.4
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run tests in Python ${{ matrix.python-version }}
+        uses: addnab/docker-run-action@v3
+        with:
+          image: ${{ matrix.image }}
+          options: -v ${{ github.workspace }}:/workspace
+          run: |
+            cd /workspace
+            python --version
+            wget \
+              https://files.pythonhosted.org/packages/65/e0/eb35e762802015cab1ccee04e8a277b03f1d8e53da3ec3106882ec42558b/Jinja2-2.10.3-py2.py3-none-any.whl \
+              https://files.pythonhosted.org/packages/4d/de/32d741db316d8fdb7680822dd37001ef7a448255de9699ab4bfcbdf4172b/MarkupSafe-1.0.tar.gz \
+              https://files.pythonhosted.org/packages/d2/2d/e15d38b0a34a3e88e3c164a7ec04ed43f45869c20304db13875b24002506/coverage-3.6.tar.gz \
+              https://files.pythonhosted.org/packages/de/f4/b205776cf5cbddbc1e2c3223fa29c0d05f18a9b8afad8cfa23438c217434/nose-1.3.0.tar.gz \
+              https://files.pythonhosted.org/packages/70/a9/9b66f22d038de51e05f92d5e677fd89d8f9c980db0b8a130621baad052f5/flake8-2.6.2-py2.py3-none-any.whl \
+              https://files.pythonhosted.org/packages/69/be/9c322ed286263a93e5ee0ff575662d0709fc73ee906522e7cfa72b08b946/mccabe-0.5.3-py2.py3-none-any.whl \
+              https://files.pythonhosted.org/packages/05/00/2867f51e4c2526fd8524176520aecfcd1562033cc5f7110673012294fcc7/pyflakes-1.1.0-py2.py3-none-any.whl \
+              https://files.pythonhosted.org/packages/73/31/136a79364c1681a3c276796d1f5090833bd03461b78a1b037638d1a2c484/pycodestyle-2.0.0-py2.py3-none-any.whl
+            test "${{ matrix.python-version}}" = "2.6" && \
+                wget https://files.pythonhosted.org/packages/31/77/3781f65cafe55480b56914def99022a5d2965a4bb269655c89ef2f1de3cd/importlib-1.0.4.zip && \
+                pip install --no-index importlib-1.0.4.zip
+            pip install --no-index *.whl *.tar.gz
+            pip install --no-index -e .
+            nosetests --with-doctest
+
+  legacy:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    strategy:
+      matrix:
+        python: [2.7, 3.6, 3.7, 3.8]
+        include:
+          - python: 2.7
+            image: python:2.7-slim
+          - python: 3.6
+            image: python:3.6-slim
+          - python: 3.7
+            image: python:3.7-slim
+          - python: 3.8
+            image: python:3.8-slim
+
+    container:
+      image: ${{ matrix.image }}
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check python version
+        run: python --version
+      - name: Install dependencies
+        run: pip install --requirement requirements/testing.txt
+      - name: Install PyDocX
+        run: pip install -e .[dev]  # editable install so CLI entry points are available
+      - name: Run tests
+        run: nosetests --with-doctest
diff --git a/requirements/testing.txt b/requirements/testing.txt
index 77421ff8..e9a0d28b 100644
--- a/requirements/testing.txt
+++ b/requirements/testing.txt
@@ -1,4 +1,4 @@
 Jinja2>=2.0
 coverage==3.6
 nose==1.3.0
-flake8
+flake8==3.3.0