diff --git a/bgs.md b/bgs.md
index d437b4a..d10c987 100644
--- a/bgs.md
+++ b/bgs.md
@@ -1,5 +1,8 @@
 - updated: 2025/12/3
 
+There was an error in the consistency of the bgs data, so it was reset.
+Therefore, the following steps are required.
+
 1. new_pds_per_day_limit: `0 -> Rate limiter` immediately rejects.
 2. trusted_domains: Not in the trusted domain list.
 3. new_subs_disabled: `false`, so no problem.