diff --git a/adjustText/_version.py b/adjustText/_version.py
index 67bc602..9c73af2 100644
--- a/adjustText/_version.py
+++ b/adjustText/_version.py
@@ -1 +1 @@
-__version__ = "1.3.0"
+__version__ = "1.3.1"
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..aa9739a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools>=61", "wheel", "build"]
+build-backend = "setuptools.build_meta"
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..0513775
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,10 @@
+[metadata]
+name = adjustText
+
+[options]
+packages = find:
+python_requires = >=3.8
+install_requires =
+    matplotlib>=3.2
+    numpy>=1.20
+    scipy>=1.4.0