diff --git a/tests/conftest.py b/tests/conftest.py
index cc5b7a5..92b1db0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -218,7 +218,7 @@ def db_setup():
     sync_eng.dispose()
 
 
-@pytest.fixture(autouse=True)
+@pytest.fixture(autouse=False)
 def clean_tables(db_setup):
     """Clean all table data before each test (preserve schema).