diff --git a/synapse/config/experimental.py b/synapse/config/experimental.py
index cb22932be6c..f9b38a5c04e 100644
--- a/synapse/config/experimental.py
+++ b/synapse/config/experimental.py
@@ -2,7 +2,7 @@
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
 # Copyright 2021 The Matrix.org Foundation C.I.C.
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py
index d6638d133ca..ca7e3c75ed0 100644
--- a/synapse/rest/__init__.py
+++ b/synapse/rest/__init__.py
@@ -2,7 +2,7 @@
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
 # Copyright 2014-2016 OpenMarket Ltd
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/rest/client/room.py b/synapse/rest/client/room.py
index 8a20fc26314..e5b1f360f11 100644
--- a/synapse/rest/client/room.py
+++ b/synapse/rest/client/room.py
@@ -2,7 +2,7 @@
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
 # Copyright 2014-2016 OpenMarket Ltd
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/rest/client/versions.py b/synapse/rest/client/versions.py
index 3096d04f051..ff3509f2056 100644
--- a/synapse/rest/client/versions.py
+++ b/synapse/rest/client/versions.py
@@ -4,7 +4,7 @@
 # Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright 2017 Vector Creations Ltd
 # Copyright 2016 OpenMarket Ltd
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/server.py b/synapse/server.py
index 18bed8fe54a..9f363032fec 100644
--- a/synapse/server.py
+++ b/synapse/server.py
@@ -2,7 +2,7 @@
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
 # Copyright 2021 The Matrix.org Foundation C.I.C.
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/storage/databases/main/__init__.py b/synapse/storage/databases/main/__init__.py
index 490d0c14b67..04b6684bc95 100644
--- a/synapse/storage/databases/main/__init__.py
+++ b/synapse/storage/databases/main/__init__.py
@@ -3,7 +3,7 @@
 #
 # Copyright 2019-2021 The Matrix.org Foundation C.I.C.
 # Copyright 2014-2016 OpenMarket Ltd
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
diff --git a/synapse/storage/schema/__init__.py b/synapse/storage/schema/__init__.py
index 7f70b014dc9..8715dec5c60 100644
--- a/synapse/storage/schema/__init__.py
+++ b/synapse/storage/schema/__init__.py
@@ -2,7 +2,7 @@
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
 # Copyright 2021 The Matrix.org Foundation C.I.C.
-# Copyright (C) 2023 New Vector, Ltd
+# Copyright (C) 2023-2024 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as