1 files changed, 3 insertions, 3 deletions
diff --git a/tests/test_wrapper.py b/tests/test_wrapper.py
index e154ff8..37af16b 100644
--- a/tests/test_wrapper.py
+++ b/tests/test_wrapper.py
@@ -4,7 +4,7 @@ import cachetools
 import cachetools.keys
 
 
-class DecoratorTestMixin(object):
+class DecoratorTestMixin:
     def cache(self, minsize):
         raise NotImplementedError
 
@@ -76,7 +76,7 @@ class DecoratorTestMixin(object):
         self.assertEqual(len(cache), 3)
 
     def test_decorator_lock(self):
-        class Lock(object):
+        class Lock:
 
             count = 0
 
@@ -114,7 +114,7 @@ class CacheWrapperTest(unittest.TestCase, DecoratorTestMixin):
         self.assertEqual(len(cache), 0)
 
     def test_zero_size_cache_decorator_lock(self):
-        class Lock(object):
+        class Lock:
 
             count = 0