diff --git a/tests/test_e2e_v27.py b/tests/test_e2e_v27.py
index 7e32116..99efb0b 100644
--- a/tests/test_e2e_v27.py
+++ b/tests/test_e2e_v27.py
@@ -838,7 +838,7 @@ class TestE10FullChain:
             "id": dep_id,
             "title": "依赖任务",
             "status": "blocked",
-            "depends_on": json.dumps([child_ids[0]]),
+            "depends_on": [child_ids[0]],
         })
         assert resp.status_code == 200