diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 5532a15..00997c4 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -16,6 +16,7 @@ jobs:
           - '3.9'
           - '3.10'
           - '3.11'
+          - '3.12'
     name: Python ${{ matrix.python-version }}
     steps:
       - uses: actions/checkout@v3
@@ -27,11 +28,12 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pytest-cov codecov
-          python setup.py develop easy_install "catmux[test]"
+          pip install pytest-cov codecov coverage
+          pip install -e .[test]
       - name: Test with pytest
         run: |
-          pytest --cov=catmux --cov-report=xml .
+          coverage run --source=catmux -m pytest && coverage report
+          coverage xml -o coverage.xml
       - name: Run example
         run: |
           catmux_create_session -d catmux/resources/example_session.yaml
diff --git a/.github/workflows/package.yaml b/.github/workflows/package.yaml
index 3436670..e9a4b27 100644
--- a/.github/workflows/package.yaml
+++ b/.github/workflows/package.yaml
@@ -16,6 +16,7 @@ jobs:
           - '3.9'
           - '3.10'
           - '3.11'
+          - '3.12'
     name: Python ${{ matrix.python-version }}
     steps:
       - uses: actions/checkout@v3
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..68847bb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools >= 61.0"]
+build-backend = "setuptools.build_meta"