diff --git a/pyproject.toml b/pyproject.toml
index 4849f0b5..fca4607b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,36 @@
 [build-system]
 requires = ["setuptools>=62.3", "oldest-supported-numpy", "cython~=3.0", "raysect==0.8.1.*"]
 build-backend="setuptools.build_meta"
+
+[tool.ruff]
+line-length = 120
+include = ["cherab/**/*.py", "demos/**/*.py"]
+
+[tool.ruff.lint]
+select = [
+  "E",   # pycodestyle
+  "B",   # flake8-bugbear
+  "F",   # pyflakes
+  "I",   # isort (import order)
+  "N",   # pep8-naming
+  "W",   # Warning
+  "UP",  # pyupgrade
+  "NPY", # numpy specific rules
+  "D",   # pydocstyle
+  "DOC", # pydoclint
+]
+preview = true
+ignore = [
+  # Recommended ignores by ruff when using formatter
+  "E501", # line too long
+  "N803", # argument name should be lowercase
+  "N806", # variable in function should be lowercase
+  "D107", # missing docstring in __init__
+  "F401", # ignore unused imports
+]
+
+[tool.ruff.lint.pydocstyle]
+convention = "numpy"
+
+[tool.cython-lint]
+max-line-length = 140