diff --git a/python/ruff-ecosystem/ruff_ecosystem/defaults.py b/python/ruff-ecosystem/ruff_ecosystem/defaults.py
index 66d56c1629..7c3aaa0214 100644
--- a/python/ruff-ecosystem/ruff_ecosystem/defaults.py
+++ b/python/ruff-ecosystem/ruff_ecosystem/defaults.py
@@ -38,7 +38,7 @@ DEFAULT_TARGETS = [
     Project(repo=Repository(owner="docker", name="docker-py", ref="main")),
     Project(repo=Repository(owner="freedomofpress", name="securedrop", ref="develop")),
     Project(repo=Repository(owner="fronzbot", name="blinkpy", ref="dev")),
-    Project(repo=Repository(owner="ibis-project", name="ibis", ref="master")),
+    Project(repo=Repository(owner="ibis-project", name="ibis", ref="main")),
     Project(repo=Repository(owner="ing-bank", name="probatus", ref="main")),
     Project(repo=Repository(owner="jrnl-org", name="jrnl", ref="develop")),
     Project(repo=Repository(owner="latchbio", name="latch", ref="main")),