diff --git a/picard/acousticbrainz/__init__.py b/picard/acousticbrainz/__init__.py
index 5c8af296f..fbeed1cbd 100644
--- a/picard/acousticbrainz/__init__.py
+++ b/picard/acousticbrainz/__init__.py
@@ -21,6 +21,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
+
 from collections import (
     defaultdict,
     namedtuple,
diff --git a/picard/dataobj.py b/picard/dataobj.py
index a8a5cef82..5f71f871a 100644
--- a/picard/dataobj.py
+++ b/picard/dataobj.py
@@ -25,6 +25,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
+
 from collections import Counter
 
 from picard.config import get_config
diff --git a/picard/formats/midi.py b/picard/formats/midi.py
index 4be1e5503..6213af0ca 100644
--- a/picard/formats/midi.py
+++ b/picard/formats/midi.py
@@ -2,7 +2,7 @@
 #
 # Picard, the next-generation MusicBrainz tagger
 #
-# Copyright (C) 2018, 2020 Philipp Wolfer
+# Copyright (C) 2018, 2020-2021 Philipp Wolfer
 # Copyright (C) 2020-2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
diff --git a/picard/formats/mutagenext/ac3.py b/picard/formats/mutagenext/ac3.py
index 52fff032b..cffca4312 100644
--- a/picard/formats/mutagenext/ac3.py
+++ b/picard/formats/mutagenext/ac3.py
@@ -2,7 +2,7 @@
 #
 # Picard, the next-generation MusicBrainz tagger
 #
-# Copyright (C) 2019 Philipp Wolfer
+# Copyright (C) 2019, 2021 Philipp Wolfer
 # Copyright (C) 2020-2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
diff --git a/picard/formats/wav.py b/picard/formats/wav.py
index 40db908e8..515fa79e7 100644
--- a/picard/formats/wav.py
+++ b/picard/formats/wav.py
@@ -7,7 +7,7 @@
 # Copyright (C) 2013 Michael Wiencek
 # Copyright (C) 2016-2017 Sambhav Kothari
 # Copyright (C) 2018, 2020-2021 Laurent Monin
-# Copyright (C) 2018-2020 Philipp Wolfer
+# Copyright (C) 2018-2021 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/picard/releasegroup.py b/picard/releasegroup.py
index 1bd41f89d..34a166c8a 100644
--- a/picard/releasegroup.py
+++ b/picard/releasegroup.py
@@ -8,7 +8,7 @@
 # Copyright (C) 2017 Wieland Hoffmann
 # Copyright (C) 2017-2018 Sambhav Kothari
 # Copyright (C) 2018 Vishal Choudhary
-# Copyright (C) 2019 Philipp Wolfer
+# Copyright (C) 2019, 2021 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/picard/ui/widgets/scriptlistwidget.py b/picard/ui/widgets/scriptlistwidget.py
index a1cfc0bc6..b9c564bd7 100644
--- a/picard/ui/widgets/scriptlistwidget.py
+++ b/picard/ui/widgets/scriptlistwidget.py
@@ -20,6 +20,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
+
 from functools import partial
 import threading
 
diff --git a/picard/util/cdrom.py b/picard/util/cdrom.py
index 12c938940..0d6ef958c 100644
--- a/picard/util/cdrom.py
+++ b/picard/util/cdrom.py
@@ -28,6 +28,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
+
 import os.path
 
 from picard import log
diff --git a/picard/util/progresscheckpoints.py b/picard/util/progresscheckpoints.py
index 3290296d4..c503d55f0 100644
--- a/picard/util/progresscheckpoints.py
+++ b/picard/util/progresscheckpoints.py
@@ -4,6 +4,7 @@
 #
 # Copyright (C) 2020 Gabriel Ferreira
 # Copyright (C) 2020-2021 Laurent Monin
+# Copyright (C) 2021 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/picard/util/script_detector_weighted.py b/picard/util/script_detector_weighted.py
index 034e66b30..f39e0b33d 100644
--- a/picard/util/script_detector_weighted.py
+++ b/picard/util/script_detector_weighted.py
@@ -3,6 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2021 Bob Swift
+# Copyright (C) 2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/picard/util/versions.py b/picard/util/versions.py
index 41cd7398b..a00a03b95 100644
--- a/picard/util/versions.py
+++ b/picard/util/versions.py
@@ -5,7 +5,7 @@
 # Copyright (C) 2006-2014 Lukáš Lalinský
 # Copyright (C) 2014-2015, 2017-2018, 2020-2021 Laurent Monin
 # Copyright (C) 2016 Sambhav Kothari
-# Copyright (C) 2018-2019 Philipp Wolfer
+# Copyright (C) 2018-2019, 2021 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/test/formats/test_midi.py b/test/formats/test_midi.py
index 0a2014076..15b4f4a93 100644
--- a/test/formats/test_midi.py
+++ b/test/formats/test_midi.py
@@ -2,7 +2,7 @@
 #
 # Picard, the next-generation MusicBrainz tagger
 #
-# Copyright (C) 2019-2020 Philipp Wolfer
+# Copyright (C) 2019-2021 Philipp Wolfer
 # Copyright (C) 2020 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
diff --git a/test/test_acousticbrainz.py b/test/test_acousticbrainz.py
index 268515fdb..b6d7ee49a 100644
--- a/test/test_acousticbrainz.py
+++ b/test/test_acousticbrainz.py
@@ -3,6 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2021 Gabriel Ferreira
+# Copyright (C) 2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/test/test_config_upgrade.py b/test/test_config_upgrade.py
index c8f7c9fb2..b08d0ad68 100644
--- a/test/test_config_upgrade.py
+++ b/test/test_config_upgrade.py
@@ -4,6 +4,7 @@
 #
 # Copyright (C) 2019-2020 Laurent Monin
 # Copyright (C) 2019-2021 Philipp Wolfer
+# Copyright (C) 2021 Bob Swift
 # Copyright (C) 2021 Gabriel Ferreira
 #
 # This program is free software; you can redistribute it and/or
diff --git a/test/test_coverartprovider_caa.py b/test/test_coverartprovider_caa.py
index 633cad4ba..7d6aeef74 100644
--- a/test/test_coverartprovider_caa.py
+++ b/test/test_coverartprovider_caa.py
@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2020 Laurent Monin
-# Copyright (C) 2020 Philipp Wolfer
+# Copyright (C) 2020-2021 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/test/test_dataobj.py b/test/test_dataobj.py
index f02df82a0..84a153de1 100644
--- a/test/test_dataobj.py
+++ b/test/test_dataobj.py
@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2018 Philipp Wolfer
-# Copyright (C) 2020 Laurent Monin
+# Copyright (C) 2020-2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/test/test_mbjson.py b/test/test_mbjson.py
index 12f668c32..eb72e08ca 100644
--- a/test/test_mbjson.py
+++ b/test/test_mbjson.py
@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2017 Sambhav Kothari
-# Copyright (C) 2017, 2019-2020 Laurent Monin
+# Copyright (C) 2017, 2019-2021 Laurent Monin
 # Copyright (C) 2018 Wieland Hoffmann
 # Copyright (C) 2018-2021 Philipp Wolfer
 # Copyright (C) 2020 dukeyin
diff --git a/test/test_similarity.py b/test/test_similarity.py
index 2005a7154..7359a51ba 100644
--- a/test/test_similarity.py
+++ b/test/test_similarity.py
@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2006 Lukáš Lalinský
-# Copyright (C) 2013, 2018-2020 Laurent Monin
+# Copyright (C) 2013, 2018-2021 Laurent Monin
 # Copyright (C) 2018 Wieland Hoffmann
 #
 # This program is free software; you can redistribute it and/or
diff --git a/test/test_taggenrefilter.py b/test/test_taggenrefilter.py
index 7128f4329..b7756d2ee 100644
--- a/test/test_taggenrefilter.py
+++ b/test/test_taggenrefilter.py
@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2019 Wieland Hoffmann
-# Copyright (C) 2019-2020 Laurent Monin
+# Copyright (C) 2019-2021 Laurent Monin
 # Copyright (C) 2020 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
diff --git a/test/test_track.py b/test/test_track.py
index e246641a2..cd8af9fac 100644
--- a/test/test_track.py
+++ b/test/test_track.py
@@ -18,6 +18,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
+
 from collections import Counter
 
 from test.picardtestcase import PicardTestCase
diff --git a/test/test_util_script_detector_weighted.py b/test/test_util_script_detector_weighted.py
index 7e64d0d08..eaf7aef4c 100644
--- a/test/test_util_script_detector_weighted.py
+++ b/test/test_util_script_detector_weighted.py
@@ -3,6 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2021 Bob Swift
+# Copyright (C) 2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
diff --git a/test/test_util_uniqnum_title.py b/test/test_util_uniqnum_title.py
index f05f19520..16a3bc2ed 100644
--- a/test/test_util_uniqnum_title.py
+++ b/test/test_util_uniqnum_title.py
@@ -2,6 +2,7 @@
 #
 # Picard, the next-generation MusicBrainz tagger
 #
+# Copyright (C) 2021 Bob Swift
 # Copyright (C) 2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or