diff --git a/bookwalker.md b/bookwalker.md
index e2e2b22..a15ca58 100644
--- a/bookwalker.md
+++ b/bookwalker.md
@@ -29,3 +29,4 @@
 | 2021/08/12 | 69折 | 0.69 |
 | 2021/08/20 | 79折 | 0.79 |
 | 2021/08/26 | 點數30倍 | 0.769 |
+| 2021/09/05 | 88折 | 0.88 |