diff --git a/tests/test_e2e_four_phase.py b/tests/test_e2e_four_phase.py
index 743de32..e3c9824 100644
--- a/tests/test_e2e_four_phase.py
+++ b/tests/test_e2e_four_phase.py
@@ -90,7 +90,11 @@ def _list_tasks(pid: str, **params) -> List[Dict]:
     resp = http_requests.get(
         f"{API_BASE}/api/projects/{pid}/tasks", params=params, timeout=10)
     assert resp.status_code == 200
-    return resp.json()
+    data = resp.json()
+    # API 返回 {"tasks": [...]} 或直接 [...]
+    if isinstance(data, dict) and "tasks" in data:
+        return data["tasks"]
+    return data
 
 
 def _update_status(pid: str, tid: str, status: str,