diff --git a/tests/federation/test_complexity.py b/tests/federation/test_complexity.py
index 8a06695ff6..9bd97e5d4e 100644
--- a/tests/federation/test_complexity.py
+++ b/tests/federation/test_complexity.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 Matrix.org Foundation
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/test_federation_client.py b/tests/federation/test_federation_client.py
index 5313bb33a3..585f3b798c 100644
--- a/tests/federation/test_federation_client.py
+++ b/tests/federation/test_federation_client.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2022 Matrix.org Federation C.I.C
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/test_federation_server.py b/tests/federation/test_federation_server.py
index 8c9ef766d1..36684c2c91 100644
--- a/tests/federation/test_federation_server.py
+++ b/tests/federation/test_federation_server.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 Matrix.org Federation C.I.C
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/transport/server/__init__.py b/tests/federation/transport/server/__init__.py
index 3d833a2e44..dab387a504 100644
--- a/tests/federation/transport/server/__init__.py
+++ b/tests/federation/transport/server/__init__.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2022 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/transport/server/test__base.py b/tests/federation/transport/server/test__base.py
index 595349e70c..065e85957e 100644
--- a/tests/federation/transport/server/test__base.py
+++ b/tests/federation/transport/server/test__base.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2022 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/transport/test_client.py b/tests/federation/transport/test_client.py
index 17e8ddb61e..3d882f99f2 100644
--- a/tests/federation/transport/test_client.py
+++ b/tests/federation/transport/test_client.py
@@ -1,6 +1,7 @@
#
# 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
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/transport/test_knocking.py b/tests/federation/transport/test_knocking.py
index 2f9aefd2b6..166a01c1a2 100644
--- a/tests/federation/transport/test_knocking.py
+++ b/tests/federation/transport/test_knocking.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2020 Matrix.org Federation C.I.C
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/federation/transport/test_server.py b/tests/federation/transport/test_server.py
index e50f4bb4a3..190b79bf26 100644
--- a/tests/federation/transport/test_server.py
+++ b/tests/federation/transport/test_server.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2020 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
|