3 files changed, 3 insertions, 0 deletions
diff --git a/tests/crypto/__init__.py b/tests/crypto/__init__.py
index 3d833a2e44..fcd2134c89 100644
--- a/tests/crypto/__init__.py
+++ b/tests/crypto/__init__.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/crypto/test_event_signing.py b/tests/crypto/test_event_signing.py
index f8369f75f7..d7b9fb8bc6 100644
--- a/tests/crypto/test_event_signing.py
+++ b/tests/crypto/test_event_signing.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2015, 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/crypto/test_keyring.py b/tests/crypto/test_keyring.py
index c33b03d37d..3bfaf1c80d 100644
--- a/tests/crypto/test_keyring.py
+++ b/tests/crypto/test_keyring.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2017-2021 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