diff --git a/{{ cookiecutter.name }}/pyproject.toml b/{{ cookiecutter.name }}/pyproject.toml
index cfd2df5c..b09c2e49 100644
--- a/{{ cookiecutter.name }}/pyproject.toml	
+++ b/{{ cookiecutter.name }}/pyproject.toml	
@@ -160,6 +160,9 @@ combine-as-imports = true
 known-first-party = ["src"]
 lines-after-imports = 2
 
+[tool.ruff.lint.mccabe]
+max-complexity = 6
+
 [tool.ruff.lint.per-file-ignores]
 "*/factory.py" = [
     "ANN",  # flake8-annotations