diff --git a/backend/app/routers/projects.py b/backend/app/routers/projects.py
index 1cc4c53..cba5762 100644
--- a/backend/app/routers/projects.py
+++ b/backend/app/routers/projects.py
@@ -128,7 +128,7 @@ async def get_project_tasks(
 
     query = (
         select(ProjectTask)
-        .options(selectinload(ProjectTask.subtasks))
+        .options(selectinload(ProjectTask.subtasks).selectinload(ProjectTask.subtasks))
         .where(
             ProjectTask.project_id == project_id,
             ProjectTask.parent_task_id.is_(None),
@@ -180,7 +180,7 @@ async def create_project_task(
     # Re-fetch with subtasks loaded
     query = (
         select(ProjectTask)
-        .options(selectinload(ProjectTask.subtasks))
+        .options(selectinload(ProjectTask.subtasks).selectinload(ProjectTask.subtasks))
         .where(ProjectTask.id == new_task.id)
     )
     result = await db.execute(query)
@@ -217,7 +217,7 @@ async def update_project_task(
     # Re-fetch with subtasks loaded
     query = (
         select(ProjectTask)
-        .options(selectinload(ProjectTask.subtasks))
+        .options(selectinload(ProjectTask.subtasks).selectinload(ProjectTask.subtasks))
         .where(ProjectTask.id == task_id)
     )
     result = await db.execute(query)