diff --git a/ruff.toml b/ruff.toml
index 922aa1f1..8b22940a 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -1,3 +1,6 @@
+# include pyproject.toml for requires-python (workaround astral-sh/ruff#10299)
+include = "pyproject.toml"
+
 [lint]
 extend-select = [
 	"C901",