diff --git a/mopidy_beets/__init__.py b/mopidy_beets/__init__.py
index f56098b..7891acb 100644
--- a/mopidy_beets/__init__.py
+++ b/mopidy_beets/__init__.py
@@ -17,7 +17,7 @@ def get_default_config(self):
         return config.read(conf_file)
 
     def get_config_schema(self):
-        schema = super(BeetsExtension, self).get_config_schema()
+        schema = super().get_config_schema()
         schema["hostname"] = config.Hostname()
         schema["port"] = config.Port()
         return schema
diff --git a/mopidy_beets/actor.py b/mopidy_beets/actor.py
index bc26622..e1630f2 100644
--- a/mopidy_beets/actor.py
+++ b/mopidy_beets/actor.py
@@ -15,7 +15,7 @@ class BeetsBackend(pykka.ThreadingActor, backend.Backend):
     uri_schemes = ["beets"]
 
     def __init__(self, config, audio):
-        super(BeetsBackend, self).__init__()
+        super().__init__()
 
         beets_endpoint = "http://%s:%s" % (
             config["beets"]["hostname"],
diff --git a/mopidy_beets/client.py b/mopidy_beets/client.py
index 20c96bc..a0176d5 100644
--- a/mopidy_beets/client.py
+++ b/mopidy_beets/client.py
@@ -17,7 +17,7 @@
 logger = logging.getLogger(__name__)
 
 
-class cache(object):  # noqa: N801
+class cache:
     # TODO: merge this to util library
 
     def __init__(self, ctl=8, ttl=3600):
@@ -51,9 +51,9 @@ def _memoized(*args):
         return _memoized
 
 
-class BeetsRemoteClient(object):
+class BeetsRemoteClient:
     def __init__(self, endpoint, proxy_config):
-        super(BeetsRemoteClient, self).__init__()
+        super().__init__()
         self.api = self._get_session(proxy_config)
         self.api_endpoint = endpoint
         logger.info("Connecting to Beets remote library %s", endpoint)
diff --git a/mopidy_beets/library.py b/mopidy_beets/library.py
index 674c85b..810057a 100644
--- a/mopidy_beets/library.py
+++ b/mopidy_beets/library.py
@@ -32,7 +32,7 @@ class BeetsLibraryProvider(backend.LibraryProvider):
     ]
 
     def __init__(self, *args, **kwargs):
-        super(BeetsLibraryProvider, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.remote = self.backend.beets_api
         self.category_browsers = []
         for key, label, browser_class in self.root_categorie_list:
diff --git a/tests/test_extension.py b/tests/test_extension.py
index cc264ca..15d0023 100644
--- a/tests/test_extension.py
+++ b/tests/test_extension.py
@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 import unittest
 
 from mopidy_beets import BeetsExtension