diff --git a/tests/media/__init__.py b/tests/media/__init__.py
index 3d833a2e44..b401d78ef1 100644
--- a/tests/media/__init__.py
+++ b/tests/media/__init__.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2023 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/media/test_filepath.py b/tests/media/test_filepath.py
index 9d8989ce34..cd21b369b4 100644
--- a/tests/media/test_filepath.py
+++ b/tests/media/test_filepath.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/media/test_html_preview.py b/tests/media/test_html_preview.py
index 0ab33e87b4..d3f1e8833a 100644
--- a/tests/media/test_html_preview.py
+++ b/tests/media/test_html_preview.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2014-2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/media/test_media_retention.py b/tests/media/test_media_retention.py
index 7f613f351b..417d17ebd2 100644
--- a/tests/media/test_media_retention.py
+++ b/tests/media/test_media_retention.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/media/test_media_storage.py b/tests/media/test_media_storage.py
index a42383bcb6..cae67e11c8 100644
--- a/tests/media/test_media_storage.py
+++ b/tests/media/test_media_storage.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2018-2021 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/media/test_oembed.py b/tests/media/test_oembed.py
index abcb33a3b4..29d4580697 100644
--- a/tests/media/test_oembed.py
+++ b/tests/media/test_oembed.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/media/test_url_previewer.py b/tests/media/test_url_previewer.py
index 8d3aa60657..0ae414d408 100644
--- a/tests/media/test_url_previewer.py
+++ b/tests/media/test_url_previewer.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2023 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
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