diff --git a/app/models/__init__.py b/app/models/__init__.py
index d8cfe8a..a5b88be 100644
--- a/app/models/__init__.py
+++ b/app/models/__init__.py
@@ -1 +1,3 @@
-# Models package
\ No newline at end of file
+from .todo import Todo
+
+__all__ = ["Todo"]
\ No newline at end of file
diff --git a/app/models/todo.py b/app/models/todo.py
index 054e045..1e96ae4 100644
--- a/app/models/todo.py
+++ b/app/models/todo.py
@@ -1,15 +1,14 @@
-from datetime import datetime
-from sqlalchemy import Column, Integer, String, Text, Boolean, DateTime
-
+from sqlalchemy import Column, Integer, String, Boolean, DateTime
+from sqlalchemy.sql import func
 from app.db.base import Base
 
 
 class Todo(Base):
     __tablename__ = "todos"
-
+    
     id = Column(Integer, primary_key=True, index=True)
-    title = Column(String(255), nullable=False)
-    description = Column(Text, nullable=True)
+    title = Column(String, nullable=False)
+    description = Column(String, nullable=True)
     completed = Column(Boolean, default=False, nullable=False)
-    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
-    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
\ No newline at end of file
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
\ No newline at end of file