diff --git a/autohooks/plugins/flake8/__init__.py b/autohooks/plugins/flake8/__init__.py
index 0f1b404..ccbbed4 100644
--- a/autohooks/plugins/flake8/__init__.py
+++ b/autohooks/plugins/flake8/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2021 Greenbone AG
+# SPDX-FileCopyrightText: 2021-2025 Greenbone AG
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
diff --git a/autohooks/plugins/flake8/flake8.py b/autohooks/plugins/flake8/flake8.py
index 3a52b5d..2901d88 100644
--- a/autohooks/plugins/flake8/flake8.py
+++ b/autohooks/plugins/flake8/flake8.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2021 Greenbone AG
+# SPDX-FileCopyrightText: 2021-2025 Greenbone AG
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
diff --git a/tests/__init__.py b/tests/__init__.py
index ca35876..cb19036 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2020-2022 Greenbone AG
+# SPDX-FileCopyrightText: 2020-2025 Greenbone AG
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
diff --git a/tests/flake8_test.py b/tests/flake8_test.py
index 9b9ffc1..8984480 100644
--- a/tests/flake8_test.py
+++ b/tests/flake8_test.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2022 Greenbone AG
+# SPDX-FileCopyrightText: 2022-2025 Greenbone AG
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
diff --git a/tests/test_flake8.py b/tests/test_flake8.py
index 3adf833..bb5d541 100644
--- a/tests/test_flake8.py
+++ b/tests/test_flake8.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2020-2022 Greenbone AG
+# SPDX-FileCopyrightText: 2020-2025 Greenbone AG
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 #