--- a/tests/test-simplekeyvaluefile.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/tests/test-simplekeyvaluefile.py	Mon Feb 21 13:08:28 2022 -0700
@@ -7,7 +7,7 @@
 )
 
 
-class mockfile(object):
+class mockfile:
     def __init__(self, name, fs):
         self.name = name
         self.fs = fs
@@ -25,7 +25,7 @@
         return self.fs.contents[self.name]
 
 
-class mockvfs(object):
+class mockvfs:
     def __init__(self):
         self.contents = {}