diff --git a/pyproject.toml b/pyproject.toml
index f543b45..8aa6871 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,6 @@
+[tool.ruff]
+line-length = 80
+
 [tool.ruff.lint]
 ignore = ["COM812", "D203", "D213", "ISC001"]
 select = ["ALL"]