diff --git a/models.py b/models.py
index bd73c60..16ba0d5 100644
--- a/models.py
+++ b/models.py
@@ -19,6 +19,7 @@ class Book(Base):
     title: Mapped[str] = mapped_column(String(255), index=True)
     author: Mapped[str] = mapped_column(String(255))
 
+
 # Pydantic models
 class BookIn(BaseModel):
     """Pydantic model for book input"""