diff --git a/python/ruff-ecosystem/ruff_ecosystem/defaults.py b/python/ruff-ecosystem/ruff_ecosystem/defaults.py
index 90d12a487b..e6667bc71f 100644
--- a/python/ruff-ecosystem/ruff_ecosystem/defaults.py
+++ b/python/ruff-ecosystem/ruff_ecosystem/defaults.py
@@ -135,4 +135,5 @@ DEFAULT_TARGETS = [
     Project(repo=Repository(owner="encode", name="httpx", ref="master")),
     Project(repo=Repository(owner="mesonbuild", name="meson-python", ref="main")),
     Project(repo=Repository(owner="pdm-project", name="pdm", ref="main")),
+    Project(repo=Repository(owner="astropy", name="astropy", ref="main")),
 ]