diff --git a/lib/logitech_receiver/common.py b/lib/logitech_receiver/common.py
index 5e495909..8ef00271 100644
--- a/lib/logitech_receiver/common.py
+++ b/lib/logitech_receiver/common.py
@@ -86,7 +86,7 @@ class NamedInt(int):
         return 'NamedInt(%d, %r)' % (int(self), self.name)
 
 
-class NamedInts(object):
+class NamedInts:
     """An ordered set of NamedInt values.
 
     Indexing can be made by int or string, and will return the corresponding
diff --git a/lib/logitech_receiver/device.py b/lib/logitech_receiver/device.py
index 80e7532e..bb7e4622 100644
--- a/lib/logitech_receiver/device.py
+++ b/lib/logitech_receiver/device.py
@@ -28,7 +28,7 @@ KIND_MAP = {kind: _hidpp10.DEVICE_KIND[str(kind)] for kind in _hidpp20.DEVICE_KI
 #
 
 
-class Device(object):
+class Device:
 
     read_register = _hidpp10.read_register
     write_register = _hidpp10.write_register
diff --git a/lib/logitech_receiver/diversion.py b/lib/logitech_receiver/diversion.py
index cb2018cc..87e9ae9f 100644
--- a/lib/logitech_receiver/diversion.py
+++ b/lib/logitech_receiver/diversion.py
@@ -176,7 +176,7 @@ if x11:
     displayt = Display()
 
 
-class RuleComponent(object):
+class RuleComponent:
     def compile(self, c):
         if isinstance(c, RuleComponent):
             return c
diff --git a/lib/logitech_receiver/hidpp20.py b/lib/logitech_receiver/hidpp20.py
index 682c72b8..5ede93dd 100644
--- a/lib/logitech_receiver/hidpp20.py
+++ b/lib/logitech_receiver/hidpp20.py
@@ -226,7 +226,7 @@ class FeatureCallError(_KwException):
 #
 
 
-class FeaturesArray(object):
+class FeaturesArray:
     """A sequence of features supported by a HID++ 2.0 device."""
     __slots__ = ('supported', 'device', 'features', 'non_features')
     assert FEATURE.ROOT == 0x0000
@@ -367,7 +367,7 @@ class FeaturesArray(object):
 #
 
 
-class ReprogrammableKey(object):
+class ReprogrammableKey:
     """Information about a control present on a device with the `REPROG_CONTROLS` feature.
     Ref: https://drive.google.com/file/d/0BxbRzx7vEV7eU3VfMnRuRXktZ3M/view
     Read-only properties:
@@ -578,7 +578,7 @@ class ReprogrammableKeyV4(ReprogrammableKey):
         self._getCidReporting()
 
 
-class KeysArray(object):
+class KeysArray:
     """A sequence of key mappings supported by a HID++ 2.0 device."""
 
     __slots__ = ('device', 'keys', 'keyversion', 'cid_to_tid', 'group_cids')
@@ -813,7 +813,7 @@ ACTION_ID = _NamedInts(
 ACTION_ID._fallback = lambda x: 'unknown:%04X' % x
 
 
-class Gesture(object):
+class Gesture:
 
     gesture_index = {}
 
@@ -869,7 +869,7 @@ class Gesture(object):
     write = set
 
 
-class Param(object):
+class Param:
     param_index = {}
 
     def __init__(self, device, low, high):
@@ -947,7 +947,7 @@ class Spec:
         return f'[{self.spec}={self.value}]'
 
 
-class Gestures(object):
+class Gestures:
     """Information about the gestures that a device supports.
     Right now only some information fields are supported.
     WARNING: Assumes that parameters are always global, which is not the case.
diff --git a/lib/logitech_receiver/listener.py b/lib/logitech_receiver/listener.py
index 41db1a1d..b3775f9d 100644
--- a/lib/logitech_receiver/listener.py
+++ b/lib/logitech_receiver/listener.py
@@ -40,7 +40,7 @@ del getLogger
 #
 
 
-class _ThreadedHandle(object):
+class _ThreadedHandle:
     """A thread-local wrapper with different open handles for each thread.
 
     Closing a ThreadedHandle will close all handles.
diff --git a/lib/logitech_receiver/receiver.py b/lib/logitech_receiver/receiver.py
index 28dcabaf..2647a318 100644
--- a/lib/logitech_receiver/receiver.py
+++ b/lib/logitech_receiver/receiver.py
@@ -38,7 +38,7 @@ _IR = _hidpp10.INFO_SUBREGISTERS
 #
 
 
-class Receiver(object):
+class Receiver:
     """A Unifying Receiver instance.
 
     The paired devices are available through the sequence interface.
diff --git a/lib/logitech_receiver/settings.py b/lib/logitech_receiver/settings.py
index 2953d340..d1eb96fd 100644
--- a/lib/logitech_receiver/settings.py
+++ b/lib/logitech_receiver/settings.py
@@ -42,7 +42,7 @@ SENSITIVITY_IGNORE = 'ignore'
 KIND = _NamedInts(toggle=0x01, choice=0x02, range=0x04, map_choice=0x0A, multiple_toggle=0x10, multiple_range=0x40)
 
 
-class Setting(object):
+class Setting:
     """A setting descriptor.
     Needs to be instantiated for each specific device."""
     __slots__ = (
@@ -514,7 +514,7 @@ class BitFieldWithOffsetAndMaskSetting(BitFieldSetting):
 #
 
 
-class RegisterRW(object):
+class RegisterRW:
     __slots__ = ('register', )
 
     kind = _NamedInt(0x01, _('register'))
@@ -530,7 +530,7 @@ class RegisterRW(object):
         return device.write_register(self.register, data_bytes)
 
 
-class FeatureRW(object):
+class FeatureRW:
     __slots__ = ('feature', 'read_fnid', 'write_fnid', 'prefix', 'no_reply')
 
     kind = _NamedInt(0x02, _('feature'))
@@ -597,7 +597,7 @@ class FeatureRWMap(FeatureRW):
 #
 
 
-class BooleanValidator(object):
+class BooleanValidator:
     __slots__ = ('true_value', 'false_value', 'read_offset', 'mask', 'needs_current_value')
 
     kind = KIND.toggle
@@ -710,7 +710,7 @@ class BooleanValidator(object):
         return to_write
 
 
-class BitFieldValidator(object):
+class BitFieldValidator:
     __slots__ = ('byte_count', 'options')
 
     kind = KIND.multiple_toggle
@@ -745,7 +745,7 @@ class BitFieldValidator(object):
         return self.options
 
 
-class BitFieldWithOffsetAndMaskValidator(object):
+class BitFieldWithOffsetAndMaskValidator:
     __slots__ = ('byte_count', 'options', '_option_from_key', '_mask_from_offset', '_option_from_offset_mask')
 
     kind = KIND.multiple_toggle
@@ -827,7 +827,7 @@ class BitFieldWithOffsetAndMaskValidator(object):
         return [int(opt) if isinstance(opt, int) else opt.as_int() for opt in self.options]
 
 
-class ChoicesValidator(object):
+class ChoicesValidator:
     kind = KIND.choice
     """Translates between NamedInts and a byte sequence.
     :param choices: a list of NamedInts
@@ -939,7 +939,7 @@ class ChoicesMapValidator(ChoicesValidator):
         return self._write_prefix_bytes + new_value.to_bytes(self._byte_count, 'big')
 
 
-class RangeValidator(object):
+class RangeValidator:
     __slots__ = ('min_value', 'max_value', 'flag', '_byte_count', 'needs_current_value')
 
     kind = KIND.range
@@ -1042,7 +1042,7 @@ class MultipleRangeValidator:
         return w + b'\xFF'
 
 
-class ActionSettingRW(object):
+class ActionSettingRW:
     """Special RW class for settings that turn on and off special processing when a key or button is depressed"""
     def __init__(self, name, divert_setting_name):
         self.name = name
diff --git a/lib/logitech_receiver/settings_templates.py b/lib/logitech_receiver/settings_templates.py
index c09ff55e..3b8bcb73 100644
--- a/lib/logitech_receiver/settings_templates.py
+++ b/lib/logitech_receiver/settings_templates.py
@@ -672,7 +672,7 @@ def _feature_reprogrammable_keys():
     return _Settings(_REPROGRAMMABLE_KEYS, rw, callback=_feature_reprogrammable_keys_callback, device_kind=(_DK.keyboard, ))
 
 
-class DivertKeysRW(object):
+class DivertKeysRW:
     def __init__(self):
         self.kind = _FeatureRW.kind