diff --git a/gtk/DynamicPropertyStore.h b/gtk/DynamicPropertyStore.h
index bf4e299bf..26bd69b59 100644
--- a/gtk/DynamicPropertyStore.h
+++ b/gtk/DynamicPropertyStore.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/favicon-cache.h b/libtransmission/favicon-cache.h
index a26df29eb..4f753d5fd 100644
--- a/libtransmission/favicon-cache.h
+++ b/libtransmission/favicon-cache.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2012-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/global-ip-cache.cc b/libtransmission/global-ip-cache.cc
index 0ed9f92da..74ce99c98 100644
--- a/libtransmission/global-ip-cache.cc
+++ b/libtransmission/global-ip-cache.cc
@@ -1,4 +1,4 @@
-// This file Copyright © 2023-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/global-ip-cache.h b/libtransmission/global-ip-cache.h
index 4b9b40851..17fe353c9 100644
--- a/libtransmission/global-ip-cache.h
+++ b/libtransmission/global-ip-cache.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2023-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/observable.h b/libtransmission/observable.h
index 33db76874..97c5c80fb 100644
--- a/libtransmission/observable.h
+++ b/libtransmission/observable.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/tr-lpd.cc b/libtransmission/tr-lpd.cc
index 7a55a670c..c66f84c98 100644
--- a/libtransmission/tr-lpd.cc
+++ b/libtransmission/tr-lpd.cc
@@ -37,7 +37,7 @@
 
 using namespace std::literals;
 
-// Code in this namespace Copyright © 2022 Mnemosyne LLC.
+// Code in this namespace Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only), MIT (SPDX: MIT),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/libtransmission/utils.mm b/libtransmission/utils.mm
index 1045779f3..669ca50b7 100644
--- a/libtransmission/utils.mm
+++ b/libtransmission/utils.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2022-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/macosx/DefaultAppHelper.h b/macosx/DefaultAppHelper.h
index 99c11acc8..bfecf7766 100644
--- a/macosx/DefaultAppHelper.h
+++ b/macosx/DefaultAppHelper.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2007-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/DefaultAppHelper.mm b/macosx/DefaultAppHelper.mm
index 7653ecf64..099badc09 100644
--- a/macosx/DefaultAppHelper.mm
+++ b/macosx/DefaultAppHelper.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2007-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/GroupCell.h b/macosx/GroupCell.h
index be22c046f..570130370 100644
--- a/macosx/GroupCell.h
+++ b/macosx/GroupCell.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/GroupCell.mm b/macosx/GroupCell.mm
index 2c8ddd454..78645b2b7 100644
--- a/macosx/GroupCell.mm
+++ b/macosx/GroupCell.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/ProgressBarView.h b/macosx/ProgressBarView.h
index 882622694..eff6ab75b 100644
--- a/macosx/ProgressBarView.h
+++ b/macosx/ProgressBarView.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/ProgressBarView.mm b/macosx/ProgressBarView.mm
index aacf7b847..ef81a7184 100644
--- a/macosx/ProgressBarView.mm
+++ b/macosx/ProgressBarView.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/SmallTorrentCell.h b/macosx/SmallTorrentCell.h
index 14f82014b..6fd05421c 100644
--- a/macosx/SmallTorrentCell.h
+++ b/macosx/SmallTorrentCell.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/SmallTorrentCell.mm b/macosx/SmallTorrentCell.mm
index 69c0b5a29..5782b3ba3 100644
--- a/macosx/SmallTorrentCell.mm
+++ b/macosx/SmallTorrentCell.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellActionButton.h b/macosx/TorrentCellActionButton.h
index d557e1789..0a7fe58cf 100644
--- a/macosx/TorrentCellActionButton.h
+++ b/macosx/TorrentCellActionButton.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellActionButton.mm b/macosx/TorrentCellActionButton.mm
index 77357a3ff..bbb65ffdb 100644
--- a/macosx/TorrentCellActionButton.mm
+++ b/macosx/TorrentCellActionButton.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellControlButton.h b/macosx/TorrentCellControlButton.h
index 13d1be13e..9c480ae5c 100644
--- a/macosx/TorrentCellControlButton.h
+++ b/macosx/TorrentCellControlButton.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellControlButton.mm b/macosx/TorrentCellControlButton.mm
index cc4fc34d0..fca5a910e 100644
--- a/macosx/TorrentCellControlButton.mm
+++ b/macosx/TorrentCellControlButton.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellRevealButton.h b/macosx/TorrentCellRevealButton.h
index 515f44e8d..ff55b2cdf 100644
--- a/macosx/TorrentCellRevealButton.h
+++ b/macosx/TorrentCellRevealButton.h
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/TorrentCellRevealButton.mm b/macosx/TorrentCellRevealButton.mm
index b59dec819..44679691e 100644
--- a/macosx/TorrentCellRevealButton.mm
+++ b/macosx/TorrentCellRevealButton.mm
@@ -1,4 +1,4 @@
-// This file Copyright © 2006-2023 Transmission authors and contributors.
+// This file Copyright © Transmission authors and contributors.
 // It may be used under the MIT (SPDX: MIT) license.
 // License text can be found in the licenses/ folder.
 
diff --git a/macosx/VDKQueue/VDKQueue.h b/macosx/VDKQueue/VDKQueue.h
index d1efd5923..c3db40aa5 100644
--- a/macosx/VDKQueue/VDKQueue.h
+++ b/macosx/VDKQueue/VDKQueue.h
@@ -1,5 +1,5 @@
 //    VDKQueue.h
-//  Copyright © 2017-2022 Transmission authors and contributors.
+//  Copyright © Transmission authors and contributors.
 //
 //  Based on VDKQueue (https://github.com/bdkjones/VDKQueue) which was created and copyrighted by Bryan D K Jones on 28 March 2012.
 //  Based on UKKQueue (https://github.com/uliwitness/UKFileWatcher) which was created and copyrighted by Uli Kusterer on 21 Dec 2003.
diff --git a/macosx/VDKQueue/VDKQueue.mm b/macosx/VDKQueue/VDKQueue.mm
index 91d2db1f4..e60f6592e 100644
--- a/macosx/VDKQueue/VDKQueue.mm
+++ b/macosx/VDKQueue/VDKQueue.mm
@@ -1,5 +1,5 @@
 //    VDKQueue.mm
-//  Copyright © 2017-2022 Transmission authors and contributors.
+//  Copyright © Transmission authors and contributors.
 //
 //  Based on VDKQueue (https://github.com/bdkjones/VDKQueue) which was created and copyrighted by Bryan D K Jones on 28 March 2012.
 //  Based on UKKQueue (https://github.com/uliwitness/UKFileWatcher) which was created and copyrighted by Uli Kusterer on 21 Dec 2003.
diff --git a/tests/libtransmission/global-ip-cache-test.cc b/tests/libtransmission/global-ip-cache-test.cc
index 0263980a6..73bba1b6b 100644
--- a/tests/libtransmission/global-ip-cache-test.cc
+++ b/tests/libtransmission/global-ip-cache-test.cc
@@ -1,4 +1,4 @@
-// This file Copyright © 2023-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/tests/libtransmission/tr-peer-info-test.cc b/tests/libtransmission/tr-peer-info-test.cc
index 861a713ec..31313e80d 100644
--- a/tests/libtransmission/tr-peer-info-test.cc
+++ b/tests/libtransmission/tr-peer-info-test.cc
@@ -1,4 +1,4 @@
-// This file Copyright © 2008-2023 Mnemosyne LLC.
+// This file Copyright © Mnemosyne LLC.
 // It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
 // or any future license endorsed by Mnemosyne LLC.
 // License text can be found in the licenses/ folder.
diff --git a/web/src/force-verify-dialog.js b/web/src/force-verify-dialog.js
index 028e9e62e..b894a03a9 100644
--- a/web/src/force-verify-dialog.js
+++ b/web/src/force-verify-dialog.js
@@ -1,4 +1,4 @@
-/* @license This file Copyright © 2020-2023 Mnemosyne LLC.
+/* @license This file Copyright © Mnemosyne LLC.
    It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
    or any future license endorsed by Mnemosyne LLC.
    License text can be found in the licenses/ folder. */