diff --git a/earned_time/earned_time/tests/test_maturity_floor.py b/earned_time/earned_time/tests/test_maturity_floor.py
index afb76ca..ccebb57 100644
--- a/earned_time/earned_time/tests/test_maturity_floor.py
+++ b/earned_time/earned_time/tests/test_maturity_floor.py
@@ -14,9 +14,9 @@ from datetime import date, timedelta
 import pytest
 
 from earned_time import (
-    TUTOR,
     EARNERS,
     LADDER_FROM,
+    TUTOR,
     TUTOR_FROM,
     WORKOUT,
     Earner,
diff --git a/earned_time/earned_time/tests/test_tutor.py b/earned_time/earned_time/tests/test_tutor.py
index 21cd625..1f6e6fb 100644
--- a/earned_time/earned_time/tests/test_tutor.py
+++ b/earned_time/earned_time/tests/test_tutor.py
@@ -9,10 +9,10 @@ import pytest
 
 from earned_time import (
     AUTOMATION,
-    TUTOR,
     EARNERS,
     LADDER,
     LADDER_FROM,
+    TUTOR,
     TUTOR_EARNERS,
     TUTOR_FROM,
     TUTOR_LADDER,
diff --git a/earned_time/earned_time/tests/test_tutor_minutes.py b/earned_time/earned_time/tests/test_tutor_minutes.py
index 8be1374..7f85e66 100644
--- a/earned_time/earned_time/tests/test_tutor_minutes.py
+++ b/earned_time/earned_time/tests/test_tutor_minutes.py
@@ -54,9 +54,7 @@ def test_minute_rows_sum(tmp_path: Path, key_file: Path) -> None:
     rows: list[object] = [minute("s", n, _at(18, n)) for n in (1, 2, 3)]
     rows.append(minute("s", 4, _at(18, 13), minutes=10))
     assert _units(tmp_path, key_file, rows) == 13
-    assert first_credit_at(
-        TUTOR, _ledger(tmp_path, rows), key_file, DAY
-    ) == _at(18, 1)
+    assert first_credit_at(TUTOR, _ledger(tmp_path, rows), key_file, DAY) == _at(18, 1)
 
 
 def test_legacy_rows_count_15() -> None: