diff --git a/300_architecture/sequences/auth_login_sequences.md b/300_architecture/sequences/auth_login_sequences.md
index c1381ee..9b8bc8f 100644
--- a/300_architecture/sequences/auth_login_sequences.md
+++ b/300_architecture/sequences/auth_login_sequences.md
@@ -196,10 +196,10 @@ flowchart TD
     B -->|OAuth 로그인| C[이메일로 DB 조회]
     C --> D{기존 사용자?}
     D -->|Yes| E[기존 UUID 사용]
-    D -->|No| F[uuid.uuid4() 생성]
+    D -->|No| F["uuid.uuid4() 생성"]
     
     B -->|테스트 사용자| G[수동 UUID 할당]
-    G --> H[하드코딩 UUID<br/>aaaaaaaa-aaaa...]
+    G --> H["하드코딩 UUID<br/>aaaaaaaa-aaaa..."]
     
     B -->|시스템 사용자| I[예약 UUID 사용]