diff --git a/test/mockserver_tests/test_float32.py b/test/mockserver_tests/test_float32.py
index 3845231b..5137e6d2 100644
--- a/test/mockserver_tests/test_float32.py
+++ b/test/mockserver_tests/test_float32.py
@@ -15,15 +15,25 @@
 from google.cloud.spanner_admin_database_v1 import UpdateDatabaseDdlRequest
 from sqlalchemy import create_engine, select, MetaData, Table, Column, Integer, String
 from sqlalchemy.orm import Session
-from sqlalchemy.testing import eq_, is_instance_of, is_not_none, is_none, \
-    is_false, is_true
+from sqlalchemy.testing import (
+    eq_,
+    is_instance_of,
+    is_not_none,
+    is_none,
+    is_false,
+    is_true,
+)
 from google.cloud.spanner_v1 import (
     FixedSizePool,
     BatchCreateSessionsRequest,
     ExecuteSqlRequest,
     ResultSet,
-    PingingPool, ResultSetStats, BeginTransactionRequest,
-    ExecuteBatchDmlRequest, CommitRequest, TypeCode,
+    PingingPool,
+    ResultSetStats,
+    BeginTransactionRequest,
+    ExecuteBatchDmlRequest,
+    CommitRequest,
+    TypeCode,
 )
 from test.mockserver_tests.mock_server_test_base import (
     MockServerTestBase,
diff --git a/test/system/test_basics.py b/test/system/test_basics.py
index edbba54b..171485b8 100644
--- a/test/system/test_basics.py
+++ b/test/system/test_basics.py
@@ -21,7 +21,8 @@
     String,
     Index,
     MetaData,
-    Boolean, BIGINT,
+    Boolean,
+    BIGINT,
 )
 from sqlalchemy.orm import Session, DeclarativeBase, Mapped, mapped_column
 from sqlalchemy.types import REAL
@@ -103,6 +104,8 @@ class Number(Base):
 
         engine = connection.engine
         with Session(engine) as session:
-            number = Number(number=1, name="One", alternative_name="Uno", prime=False, ln=0.0)
+            number = Number(
+                number=1, name="One", alternative_name="Uno", prime=False, ln=0.0
+            )
             session.add(number)
             session.commit()