diff --git a/app/crud/user.py b/app/crud/user.py
index ed2264f..d9cb299 100644
--- a/app/crud/user.py
+++ b/app/crud/user.py
@@ -4,6 +4,7 @@ from sqlalchemy.orm import Session
 from app.models.user import User
 from app.schemas.user import UserCreate
 from passlib.context import CryptContext
+from datetime import datetime
 
 # 비밀번호 해싱용 도구 설정
 pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
@@ -13,7 +14,13 @@ def get_password_hash(password: str) -> str:
 
 def create_user(db: Session, user_create: UserCreate) -> User:
     hashed_pw = get_password_hash(user_create.password)
-    db_user = User(email=user_create.email, password_hash=hashed_pw)
+    now = datetime.utcnow()
+    db_user = User(
+        email=user_create.email,
+        password_hash=hashed_pw,
+        created_at=now,
+        updated_at=now
+    )
     db.add(db_user)
     db.commit()
     db.refresh(db_user)
diff --git a/app/models/user.py b/app/models/user.py
index f249116..93e63a3 100644
--- a/app/models/user.py
+++ b/app/models/user.py
@@ -10,8 +10,8 @@ class User(Base):
     id = Column(Integer, primary_key=True, index=True)
     email = Column(String, unique=True, nullable=False, index=True)
     password_hash = Column(String, nullable=False)
-    created_at = Column(DateTime, server_default=func.now(), nullable=False)
-    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
     from app.models.character import Character
     characters = relationship(Character, back_populates="user")