diff --git a/PyScModule.cpp b/PyScModule.cpp
index ada025b..08ed7e0 100644
--- a/PyScModule.cpp
+++ b/PyScModule.cpp
@@ -1,8 +1,7 @@
 /*
- * PyScModule.cpp
+ * Copyright (c) 2019 -2021 MINRES Technolgies GmbH
  *
- *  Created on: 08.06.2019
- *      Author: eyck
+ * SPDX-License-Identifier: Apache-2.0
  */
 
 #include "PyScModule.h"
diff --git a/PyScModule.h b/PyScModule.h
index 25ab3c3..b48c20b 100644
--- a/PyScModule.h
+++ b/PyScModule.h
@@ -1,8 +1,7 @@
 /*
- * PyScModule.h
+ * Copyright (c) 2019 -2021 MINRES Technolgies GmbH
  *
- *  Created on: 08.06.2019
- *      Author: eyck
+ * SPDX-License-Identifier: Apache-2.0
  */
 
 #ifndef COMPONENTS_PYSCMODULE_H_
diff --git a/pysysc/__init__.py b/pysysc/__init__.py
index 2ec273b..5035ea4 100644
--- a/pysysc/__init__.py
+++ b/pysysc/__init__.py
@@ -1 +1,7 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 from .sccppyy import *
\ No newline at end of file
diff --git a/pysysc/sccppyy.py b/pysysc/sccppyy.py
index ea0d79e..0194a71 100644
--- a/pysysc/sccppyy.py
+++ b/pysysc/sccppyy.py
@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 import json
 import cppyy
 import os.path
diff --git a/pysysc/structural.py b/pysysc/structural.py
index e90f031..a5bfb3f 100644
--- a/pysysc/structural.py
+++ b/pysysc/structural.py
@@ -1,8 +1,9 @@
-'''
-Created on 02.01.2019
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
 
-@author: eyck
-'''
 from cppyy import gbl as cpp
 from builtins import getattr
 import re
diff --git a/setup.py b/setup.py
index 54bbcb8..025efca 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 from setuptools import setup, Extension
 import os
 
diff --git a/tests/modules.py b/tests/modules.py
index 25c2dd5..405a9f9 100644
--- a/tests/modules.py
+++ b/tests/modules.py
@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 import os.path
 import logging
 import cppyy
diff --git a/tests/parsing.py b/tests/parsing.py
index 791f820..9a77ca0 100644
--- a/tests/parsing.py
+++ b/tests/parsing.py
@@ -1,8 +1,9 @@
-'''
-Created on 03.01.2019
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
 
-@author: eyck
-'''
 from cppyy_backend._cppyy_generator import CppyyGenerator
 from  clang.cindex import Config
 from pprint import pprint
diff --git a/tests/router_example.py b/tests/router_example.py
index 5324c68..921dd4e 100644
--- a/tests/router_example.py
+++ b/tests/router_example.py
@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 import json
 import cppyy
 import os.path
diff --git a/tests/systemc.py b/tests/systemc.py
index 22bd614..25454f5 100644
--- a/tests/systemc.py
+++ b/tests/systemc.py
@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
 import cppyy
 cppyy.add_include_path('.')
 cppyy.load_library('../lib/libsystemc.so.2.3.3')
diff --git a/tests/test_pysysc.py b/tests/test_pysysc.py
index cc42acd..e5adc37 100644
--- a/tests/test_pysysc.py
+++ b/tests/test_pysysc.py
@@ -1,8 +1,9 @@
-'''
-Created on 01.01.2019
+#
+# Copyright (c) 2019 -2021 MINRES Technolgies GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+#
 
-@author: eyck
-'''
 import unittest
 import json
 import cppyy