diff --git a/install.sh b/install.sh
index f24e57c24edd55505cfe12231ffa689e0b425492..7b1a9d7d5ab81b6001717657717b52d44b73a01a 100755
--- a/install.sh
+++ b/install.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-/usr/bin/env python3 setup.py build_ext
+# /usr/bin/env python3 setup.py build_ext
 # .egg-link does not work with PYTHONPATH ?
 /usr/bin/env python3 -m pip install -e .
 /usr/bin/env python3 -m pip install --no-deps --ignore-installed .
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000000000000000000000000000000000000..c07b1d35e9191baa520389e9daf8969abbb4db82
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "Cython"]
+build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 1830f130df6312f5734de2fb3d3cda4816df6655..0000000000000000000000000000000000000000
--- a/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Cython
-cytoolz