diff --git a/pyproject.toml b/pyproject.toml
index c37acdb..c075c05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -90,6 +90,9 @@ ignore-names = []
 [tool.ruff.lint.pylint]
 allow-magic-value-types = []
 
+[tool.setuptools.dynamic]
+version = {attr = "notletters.__version__"}
+
 [tool.tomlsort]
 all = true
 sort_first = ["project"]