diff --git a/docs_src/sql_databases/tutorial001_an.py b/docs_src/sql_databases/tutorial001_an.py
index 2ef8b0299..9e492546e 100644
--- a/docs_src/sql_databases/tutorial001_an.py
+++ b/docs_src/sql_databases/tutorial001_an.py
@@ -37,6 +37,7 @@ async def lifespan(app: FastAPI):
     create_db_and_tables()
     yield
 
+
 app = FastAPI(lifespan=lifespan)
 
 
diff --git a/docs_src/sql_databases/tutorial001_an_py310.py b/docs_src/sql_databases/tutorial001_an_py310.py
index e19315b80..2054877cb 100644
--- a/docs_src/sql_databases/tutorial001_an_py310.py
+++ b/docs_src/sql_databases/tutorial001_an_py310.py
@@ -36,6 +36,7 @@ async def lifespan(app: FastAPI):
     create_db_and_tables()
     yield
 
+
 app = FastAPI(lifespan=lifespan)
 
 
diff --git a/docs_src/sql_databases/tutorial001_py39.py b/docs_src/sql_databases/tutorial001_py39.py
index 3187235e0..22de0dd53 100644
--- a/docs_src/sql_databases/tutorial001_py39.py
+++ b/docs_src/sql_databases/tutorial001_py39.py
@@ -33,6 +33,7 @@ async def lifespan(app: FastAPI):
     create_db_and_tables()
     yield
 
+
 app = FastAPI(lifespan=lifespan)