diff --git a/tests/riotboot/main.c b/tests/riotboot/main.c
index 802d50671c..35b6c739e8 100644
--- a/tests/riotboot/main.c
+++ b/tests/riotboot/main.c
@@ -1,10 +1,7 @@
 /*
- * Copyright (C) 2018 Inria
- *                    Federico Pellegrin <fede@evolware.org>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
+ * SPDX-FileCopyrightText: 2018 Inria
+ * SPDX-FileCopyrightText: 2018 Federico Pellegrin <fede@evolware.org>
+ * SPDX-License-Identifier: LGPL-2.1-only
  */
 
 /**
diff --git a/tests/riotboot_flashwrite/coap_handler.c b/tests/riotboot_flashwrite/coap_handler.c
index 12a09de839..2e18f24187 100644
--- a/tests/riotboot_flashwrite/coap_handler.c
+++ b/tests/riotboot_flashwrite/coap_handler.c
@@ -1,9 +1,6 @@
 /*
- * Copyright (C) 2019 Kaspar Schleiser <kaspar@schleiser.de>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
+ * SPDX-FileCopyrightText: 2019 Kaspar Schleiser <kaspar@schleiser.de>
+ * SPDX-License-Identifier: LGPL-2.1-only
  */
 
 #include <stdlib.h>
diff --git a/tests/riotboot_flashwrite/main.c b/tests/riotboot_flashwrite/main.c
index 56b14268cd..43950c20f2 100644
--- a/tests/riotboot_flashwrite/main.c
+++ b/tests/riotboot_flashwrite/main.c
@@ -1,9 +1,6 @@
 /*
- * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
+ * SPDX-FileCopyrightText: 2016 Kaspar Schleiser <kaspar@schleiser.de>
+ * SPDX-License-Identifier: LGPL-2.1-only
  */
 
 /**
diff --git a/tests/riotboot_hdr/main.c b/tests/riotboot_hdr/main.c
index 109dff56bb..8291b9d068 100644
--- a/tests/riotboot_hdr/main.c
+++ b/tests/riotboot_hdr/main.c
@@ -1,9 +1,6 @@
 /*
- * Copyright (C) 2018 Inria
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
+ * SPDX-FileCopyrightText: 2018 Inria
+ * SPDX-License-Identifier: LGPL-2.1-only
  */
 
 /**
diff --git a/tests/rust_minimal/src/lib.rs b/tests/rust_minimal/src/lib.rs
index bbf1a1a731..41385c02c4 100644
--- a/tests/rust_minimal/src/lib.rs
+++ b/tests/rust_minimal/src/lib.rs
@@ -1,8 +1,5 @@
-// Copyright (C) 2020 Christian Amsüss
-//
-// This file is subject to the terms and conditions of the GNU Lesser
-// General Public License v2.1. See the file LICENSE in the top level
-// directory for more details.
+// SPDX-FileCopyrightText: 2020 Christian Amsüss
+// SPDX-License-Identifier: LGPL-2.1-only
 #![no_std]
 
 use riot_wrappers::println;
diff --git a/tests/turo/main.c b/tests/turo/main.c
index 765b166430..be716c401c 100644
--- a/tests/turo/main.c
+++ b/tests/turo/main.c
@@ -1,9 +1,6 @@
 /*
- * Copyright (C) 2021 HAW Hamburg
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
+ * SPDX-FileCopyrightText: 2021 HAW Hamburg
+ * SPDX-License-Identifier: LGPL-2.1-only
  */
 
 /**
diff --git a/tests/unittests/tests-gnrc_ipv6_hdr/tests-gnrc_ipv6_hdr.h b/tests/unittests/tests-gnrc_ipv6_hdr/tests-gnrc_ipv6_hdr.h
index 088037458c..fa16972a9b 100644
--- a/tests/unittests/tests-gnrc_ipv6_hdr/tests-gnrc_ipv6_hdr.h
+++ b/tests/unittests/tests-gnrc_ipv6_hdr/tests-gnrc_ipv6_hdr.h
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015 Martin Lenders
+ * SPDX-FileCopyrightText: 2015 Martine Lenders
  * SPDX-License-Identifier: LGPL-2.1-only
  */
 
diff --git a/tests/unittests/tests-inet_csum/tests-inet_csum.h b/tests/unittests/tests-inet_csum/tests-inet_csum.h
index c7aa007f92..515718c49e 100644
--- a/tests/unittests/tests-inet_csum/tests-inet_csum.h
+++ b/tests/unittests/tests-inet_csum/tests-inet_csum.h
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015 Martin Lenders
+ * SPDX-FileCopyrightText: 2015 Martine Lenders
  * SPDX-License-Identifier: LGPL-2.1-only
  */
 
diff --git a/tests/unittests/tests-ipv6_hdr/tests-ipv6_hdr.h b/tests/unittests/tests-ipv6_hdr/tests-ipv6_hdr.h
index 1d1e7e950a..161c79717e 100644
--- a/tests/unittests/tests-ipv6_hdr/tests-ipv6_hdr.h
+++ b/tests/unittests/tests-ipv6_hdr/tests-ipv6_hdr.h
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015 Martin Lenders
+ * SPDX-FileCopyrightText: 2015 Martine Lenders
  * SPDX-License-Identifier: LGPL-2.1-only
  */
 
diff --git a/tests/unittests/tests-netreg/tests-netreg.h b/tests/unittests/tests-netreg/tests-netreg.h
index f606a7fb4c..6cd2843d10 100644
--- a/tests/unittests/tests-netreg/tests-netreg.h
+++ b/tests/unittests/tests-netreg/tests-netreg.h
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2014 Martin Lenders
+ * SPDX-FileCopyrightText: 2014 Martine Lenders
  * SPDX-License-Identifier: LGPL-2.1-only
  */