diff --git a/300_architecture/database/tables.md b/300_architecture/database/tables.md
index 9e19152..bd22ab8 100644
--- a/300_architecture/database/tables.md
+++ b/300_architecture/database/tables.md
@@ -269,7 +269,6 @@
 | account_id | VARCHAR(255) | YES | | NAVER WORKS 계정 ID |
 | token_data | JSONB | YES | | 토큰 데이터 (통합 저장용) |
 | oauth_config | JSONB | YES | | OAuth 설정 정보 |
-| expiry | TIMESTAMP | YES | | 토큰 만료 시각 (passport용) |
 | is_equipped | BOOLEAN | YES | false | Passport 장착 여부 |
 
 **인덱스**: