diff --git a/tests/test_fields.py b/tests/test_fields.py
index 4ff741e56..932966de7 100644
--- a/tests/test_fields.py
+++ b/tests/test_fields.py
@@ -758,7 +758,7 @@ class TestBooleanField(FieldValues):
             with pytest.raises(serializers.ValidationError) as exc_info:
                 field.run_validation(input_value)
             expected = ['Must be a valid boolean.']
-            assert exc_info.value.detail == expected        
+            assert exc_info.value.detail == expected
 
 
 class TestNullableBooleanField(TestBooleanField):
@@ -2670,4 +2670,4 @@ class TestValidationErrorCode:
                     code=expected_code
                 ),
             ]
-        }
\ No newline at end of file
+        }