diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..f18c6fd
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[tool.black]
+line-length = 79
+target-version = ['py36', 'py37', 'py38']
\ No newline at end of file