diff --git a/src/api/blackboard_routes.py b/src/api/blackboard_routes.py
index 8db239c..f1fb016 100644
--- a/src/api/blackboard_routes.py
+++ b/src/api/blackboard_routes.py
@@ -120,7 +120,7 @@ async def _generate_title(description: str) -> str | None:
         # 用智谱 Flash（快速廉价）
         client = OpenAI(
             base_url="https://open.bigmodel.cn/api/paas/v4",
-            api_key="97552d53aea7486cb5c1f3f1f0dc51bc.WqKxmPvD",
+            api_key="97552d53aea7486aa0e5140ec0295fe7.DPpgbVoQWZiNrJ1p",
         )
         resp = client.chat.completions.create(
             model="glm-4-flash",