diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..bf4c488
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,50 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+    tags: ["*.*.*"]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.10", "3.14"]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install tox
+        run: pip install tox
+      - name: Run tests
+        run: tox -e py
+
+  deploy:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: test
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+      - name: Build package
+        run: pipx run build
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: dist/*
+          generate_release_notes: true
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index b5042cc..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-language: python
-
-env:
-  global:
-    - TWINE_USERNAME="anthrotype"
-    - secure: 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
-
-matrix:
-  include:
-    - python: 3.6
-    - python: 3.7
-      # required to run python3.7 on Travis CI
-      # https://github.com/travis-ci/travis-ci/issues/9815
-      dist: xenial
-
-install:
-  - pip install --upgrade pip setuptools wheel
-  - pip install tox-travis
-  # Travis by default only clones a 'shallow' repository with --depth=50.
-  # When building the distribution packages, we use git to determine the
-  # package version string (via setuptools_scm), hence we need to fetch
-  # the whole repo, and not just the last 50 commits.
-  - if [[ $TRAVIS_PYTHON_VERSION == 3.6 ]]; then git fetch --unshallow; fi
-
-script: tox
-
-after_success:
-  # if it's a tagged commit, upload distribution packages to PyPI
-  - |
-    if [ -n "$TRAVIS_TAG" ] && [ "$TRAVIS_REPO_SLUG" == "typemytype/booleanOperations" ] && [ "$TRAVIS_PYTHON_VERSION" == "3.6" ]; then
-        pip install --upgrade twine pip setuptools wheel
-        python setup.py sdist
-        pip wheel --no-deps --wheel-dir dist .
-        twine upload dist/*.whl dist/*.zip
-    fi
-
-deploy:
-  # deploy to Github Releases on tags
-  - provider: releases
-    api_key:
-      secure: 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
-    file_glob: true
-    file: "dist/*"
-    skip_cleanup: true
-    on:
-      repo: typemytype/booleanOperations
-      tags: true
-      all_branches: true
-      python: 3.6
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index fb3f259..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-environment:
-  matrix:
-    - PYTHON: "C:\\Python36-x64"
-      PYTHON_VERSION: "3.6.x"
-      PYTHON_ARCH: "64"
-
-    - PYTHON: "C:\\Python37-x64"
-      PYTHON_VERSION: "3.7.0"
-      PYTHON_ARCH: "64"
-
-init:
-  - "ECHO %PYTHON% %PYTHON_VERSION% %PYTHON_ARCH%"
-
-install:
-  # prepend newly installed Python to the PATH
-  - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
-
-  # check that we have the expected version and architecture for Python
-  - "python --version"
-  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
-
-  # upgrade pip to avoid out-of-date warnings
-  - "python -m pip install --disable-pip-version-check --upgrade pip"
-
-  # install/upgrade setuptools and wheel to build packages
-  - "pip install --upgrade setuptools wheel"
-
-  # install tox to run test suite in a virtual environment
-  - "pip install -U tox"
-
-build: false
-
-test_script:
-  - "tox -e py"
diff --git a/requirements.txt b/requirements.txt
index c34c8fe..484f6b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # fontTools.ufoLib is not imported directly by booleanOperations, but
 # the test suite needs defcon, which in turns requires fonttools installed
 # with [ufo] support
-fonttools[ufo]==4.0.2
-pyclipper==1.1.0.post1
+fonttools[ufo]==4.61.1
+pyclipper==1.4.0
diff --git a/setup.cfg b/setup.cfg
index 0c92629..614ae85 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,21 +14,31 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
+    Programming Language :: Python :: 3.14
     Topic :: Multimedia :: Graphics :: Editors :: Vector-Based
     Topic :: Software Development :: Libraries :: Python Modules
 
 [options]
 package_dir = =Lib
 packages = find:
-python_requires = >=3.6
+python_requires = >=3.9
 setup_requires =
     setuptools_scm
 install_requires =
     pyclipper >= 1.1.0.post1
     fonttools >= 4.0.2
 
+[options.extras_require]
+test =
+    pytest
+    defcon
+    fontPens
+
 [options.packages.find]
 where = Lib
 
diff --git a/tox.ini b/tox.ini
index 09cbb1d..84e7f96 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,13 +1,10 @@
 [tox]
-envlist = py{36,37}
+envlist = py{310,311,312,313,314}
 
 [testenv]
+extras = test
 deps =
-    defcon
-    fontPens
-    pytest
     -rrequirements.txt
-download = True
 commands =
     # pass to pytest any extra positional arguments after `tox -- ...`
     pytest {posargs}