diff --git a/pyproject.toml b/pyproject.toml
index 1778c56..d29716a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,3 +15,6 @@ advent-of-code-2023 = "advent_of_code.__main__:main"
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
+
+[tool.isort]
+profile = "black"