diff --git a/crates/manager-core/src/apply_service.rs b/crates/manager-core/src/apply_service.rs
index 194df18..8e1f308 100644
--- a/crates/manager-core/src/apply_service.rs
+++ b/crates/manager-core/src/apply_service.rs
@@ -2739,9 +2739,10 @@ impl ApplyService {
         // `exclude` (the planning project) or by nothing are dropped.
         let rows: Vec<(String, i64)> = sqlx::query_as(
             "WITH RECURSIVE subtree AS (
-                 SELECT id FROM groups WHERE id = $1
+                 SELECT id, 0 AS depth FROM groups WHERE id = $1
                UNION ALL
-                 SELECT g.id FROM groups g JOIN subtree s ON g.parent_id = s.id
+                 SELECT g.id, s.depth + 1 FROM groups g JOIN subtree s ON g.parent_id = s.id
+                 WHERE s.depth < 64
              ),
              app_chain AS (
                  SELECT a.id AS app_id, a.group_id AS gid, 0 AS depth