diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..8d3ea9a
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,38 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      contents: read   # required for actions/checkout
+      id-token: write  # required for PyPI trusted publishing (OIDC)
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install build tooling
+        run: python -m pip install --upgrade build
+
+      - name: Build sdist and wheel
+        run: python -m build
+
+      - name: Verify version matches release tag
+        run: |
+          TAG="${GITHUB_REF_NAME#v}"
+          PKG_VERSION=$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")
+          if [ "$TAG" != "$PKG_VERSION" ]; then
+            echo "Release tag ($TAG) does not match pyproject.toml version ($PKG_VERSION)" >&2
+            exit 1
+          fi
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1