diff --git a/tests/test_e2e_v27.py b/tests/test_e2e_v27.py
index 550137b..8927f2d 100644
--- a/tests/test_e2e_v27.py
+++ b/tests/test_e2e_v27.py
@@ -961,20 +961,20 @@ class TestE10FullChain:
             "depends_on": json.dumps([child_ids[0]]),
         }, timeout=10)
 
-        # 4. 手动推进 setup 子任务到 done（通过API）
-        for status in ["claimed", "working", "review", "done"]:
-            http_requests.post(
-                f"{API_BASE}/api/projects/{pid}/tasks/{child_ids[0]}/status",
-                json={"status": status, "agent": "test"}, timeout=10,
-            )
-
-        # 5. 手动推进依赖任务到 blocked
+        # 4. 先推进依赖任务到 blocked（必须在依赖完成之前）
         for status in ["claimed", "working", "blocked"]:
             http_requests.post(
                 f"{API_BASE}/api/projects/{pid}/tasks/{dep_id}/status",
                 json={"status": status, "agent": "test"}, timeout=10,
             )
 
+        # 5. 再推进 setup 子任务到 done（触发依赖推进条件）
+        for status in ["claimed", "working", "review", "done"]:
+            http_requests.post(
+                f"{API_BASE}/api/projects/{pid}/tasks/{child_ids[0]}/status",
+                json={"status": status, "agent": "test"}, timeout=10,
+            )
+
         # 6. 等待 Ticker 依赖推进（1-2个tick）
         print(f"\n🚀 E10a: 等待依赖推进 (pid={pid})")
         dep_result = self._poll_task(