diff --git a/.github/workflows/scripts/build_python_client.sh b/.github/workflows/scripts/build_python_client.sh
index 1eec5eda7c..1ea7014bfb 100755
--- a/.github/workflows/scripts/build_python_client.sh
+++ b/.github/workflows/scripts/build_python_client.sh
@@ -21,7 +21,7 @@ rm -rf "pulpcore-client"
 ./gen-client.sh "../pulpcore/core-api.json" "core" python "pulpcore"
 
 pushd pulpcore-client
-python setup.py sdist bdist_wheel --python-tag py3
+python -m build
 
 twine check "dist/pulpcore_client-"*"-py3-none-any.whl"
 twine check "dist/pulpcore_client-"*".tar.gz"
@@ -56,7 +56,7 @@ rm -rf "pulp_file-client"
 ./gen-client.sh "../pulpcore/file-api.json" "file" python "pulp_file"
 
 pushd pulp_file-client
-python setup.py sdist bdist_wheel --python-tag py3
+python -m build
 
 twine check "dist/pulp_file_client-"*"-py3-none-any.whl"
 twine check "dist/pulp_file_client-"*".tar.gz"
@@ -91,7 +91,7 @@ rm -rf "pulp_certguard-client"
 ./gen-client.sh "../pulpcore/certguard-api.json" "certguard" python "pulp_certguard"
 
 pushd pulp_certguard-client
-python setup.py sdist bdist_wheel --python-tag py3
+python -m build
 
 twine check "dist/pulp_certguard_client-"*"-py3-none-any.whl"
 twine check "dist/pulp_certguard_client-"*".tar.gz"
diff --git a/.github/workflows/scripts/script.sh b/.github/workflows/scripts/script.sh
index 9e2d796811..542e34f80a 100755
--- a/.github/workflows/scripts/script.sh
+++ b/.github/workflows/scripts/script.sh
@@ -72,7 +72,7 @@ pushd ../pulp-openapi-generator
       rm -rf "./${PACKAGE}-client"
       ./gen-client.sh "${COMPONENT}-api.json" "${COMPONENT}" python "${PACKAGE}"
       pushd "${PACKAGE}-client"
-        python setup.py sdist bdist_wheel --python-tag py3
+        python -m build
       popd
     else
       if [ ! -f "${PACKAGE}-client/dist/${PACKAGE}_client-${VERSION}-py3-none-any.whl" ]
diff --git a/pyproject.toml b/pyproject.toml
index d6c4a1f8ab..02ed8cb5a2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 requires = [
-    "setuptools >= 40.8.0",
+    "setuptools >= 40.8.0",  # why such an old version?
     "wheel >= 0.29.0",
 ]
 build-backend = 'setuptools.build_meta'