diff --git a/{{cookiecutter.project_slug}}/CHEATSHEET.rst b/{{cookiecutter.project_slug}}/CHEATSHEET.rst
index f95854f..d6a6f6b 100644
--- a/{{cookiecutter.project_slug}}/CHEATSHEET.rst
+++ b/{{cookiecutter.project_slug}}/CHEATSHEET.rst
@@ -93,7 +93,7 @@ To make a release
 
 * Double-check it all works, docs build, etc.
 
-* Build your sdist and wheel: ``python setup.py sdist bdist_wheel``
+* Build your sdist and wheel: ``python -m pep517.build --source --binary --out-dir dist/ .``
 
 * Upload to PyPI: ``twine upload dist/*``
 
diff --git a/{{cookiecutter.project_slug}}/ci.sh b/{{cookiecutter.project_slug}}/ci.sh
index 4c2bf71..4f62916 100755
--- a/{{cookiecutter.project_slug}}/ci.sh
+++ b/{{cookiecutter.project_slug}}/ci.sh
@@ -73,11 +73,11 @@ fi
 
 python -c "import sys, struct, ssl; print('#' * 70); print('python:', sys.version); print('version_info:', sys.version_info); print('bits:', struct.calcsize('P') * 8); print('openssl:', ssl.OPENSSL_VERSION, ssl.OPENSSL_VERSION_INFO); print('#' * 70)"
 
-python -m pip install -U pip setuptools wheel
+python -m pip install -U pip setuptools wheel pep517
 python -m pip --version
 
-python setup.py sdist --formats=zip
-python -m pip install dist/*.zip
+python -m pep517.build --source --out-dir dist/ .
+python -m pip install dist/*.tar.gz
 
 if [ "$CHECK_DOCS" = "1" ]; then
     python -m pip install -r docs-requirements.txt
diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
index fcb68d4..fe0e796 100644
--- a/{{cookiecutter.project_slug}}/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -5,3 +5,10 @@ directory = "newsfragments"
 underlines = ["-", "~", "^"]
 # COOKIECUTTER-TRIO-TODO: fill in the URL below to point to your issue tracker:
 issue_format = "`#{issue} <https://github.com/ACCOUNT/REPO/issues/{issue}>`__"
+
+[build-system]
+requires = [
+    "setuptools >= 50.0.3",
+    "wheel >= 0.35.1",
+]
+build-backend = "setuptools.build_meta"