diff --git a/pyproject.toml b/pyproject.toml
index 59c57439..9c8d7ee8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,2 +1,8 @@
 [build-system]
 requires = ["setuptools>=40.8", "wheel"]
+
+[tool.black]
+line-length = 99
+target-version = ['py37']
+skip-string-normalization = true
+extend-exclude = '_version.py|versioneer.py'