diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a514c2..81bb0f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 <!--
+SPDX-License-Identifier: MPL-2.0
 SPDX-License-Identifier: CC-BY-SA-4.0
+SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath)
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Changelog