diff --git a/lives/2020-12-19/day.yml b/lives/2020-12-19/day.yml
index feab783a6c6929c61aedd507e5268a9f5210b9c7..c9629ba3569d74d326ef828dadf4cd0f4452fbe1 100644
--- a/lives/2020-12-19/day.yml
+++ b/lives/2020-12-19/day.yml
@@ -30,21 +30,21 @@ items:
     title: 'C会场'
     namespace_path: ' '
     description: '2020 中国 .NET 开发者大会 C会场'
-    live_link: 'https://live.csdn.net/room/weixin_41960540/0qprIByz'
+    live_link: 'https://live.csdn.net/room/sD7O95O/y5BBhpoL'
 #5   
   - start_time: '13:00'
     end_time: '17:30'
     title: 'D会场'
     namespace_path: ' '
     description: '2020 中国 .NET 开发者大会 D会场'
-    live_link: 'https://live.csdn.net/room/weixin_41960540/0qprIByz'
+    live_link: 'https://live.csdn.net/room/shanyou/1abV7F6t'
 #6   
   - start_time: '13:00'
     end_time: '17:30'
     title: 'E会场'
     namespace_path: ' '
     description: '2020 中国 .NET 开发者大会 E会场'
-    live_link: 'https://live.csdn.net/room/weixin_41960540/0qprIByz'
+    live_link: 'https://live.csdn.net/room/csdn_codechina/hJUomJAg'
 #7   
   - start_time: '9:30'
     end_time: '17:30'