diff --git a/go.sum.license b/go.sum.license
new file mode 100644
index 0000000..d2d99a0
--- /dev/null
+++ b/go.sum.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 Winni Neessen <wn@neessen.dev>
+
+SPDX-License-Identifier: MIT