diff --git a/pyproject.toml b/pyproject.toml
index 285bc2a..002725e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,3 +29,19 @@ dev = [
     "pytest-expectdir (>=1.2.0,<2.0.0)",
     "ruff (>=0.16.8,<0.17.0)"
 ]
+
+[tool.ruff]
+line-length = 79
+target-version = "py311"
+
+[tool.ruff.lint]
+select = [
+    "E",
+    "F",
+    "W",
+    "I",
+    "UP"
+]
+
+[tool.ruff.format]
+quote-style = "single"