diff --git a/poky/bitbake/lib/progressbar/__init__.py b/poky/bitbake/lib/progressbar/__init__.py
index fbab744..c545a62 100644
--- a/poky/bitbake/lib/progressbar/__init__.py
+++ b/poky/bitbake/lib/progressbar/__init__.py
@@ -4,6 +4,8 @@
 # progressbar  - Text progress bar library for Python.
 # Copyright (c) 2005 Nilton Volpato
 #
+# SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause-Clear
+#
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
diff --git a/poky/bitbake/lib/progressbar/compat.py b/poky/bitbake/lib/progressbar/compat.py
index a39f4a1..9804e0b 100644
--- a/poky/bitbake/lib/progressbar/compat.py
+++ b/poky/bitbake/lib/progressbar/compat.py
@@ -3,6 +3,8 @@
 # progressbar  - Text progress bar library for Python.
 # Copyright (c) 2005 Nilton Volpato
 #
+# SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause-Clear
+#
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
diff --git a/poky/bitbake/lib/progressbar/progressbar.py b/poky/bitbake/lib/progressbar/progressbar.py
index 2873ad6..e2b6ba1 100644
--- a/poky/bitbake/lib/progressbar/progressbar.py
+++ b/poky/bitbake/lib/progressbar/progressbar.py
@@ -5,6 +5,8 @@
 #
 # (With some small changes after importing into BitBake)
 #
+# SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause-Clear
+#
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
diff --git a/poky/bitbake/lib/progressbar/widgets.py b/poky/bitbake/lib/progressbar/widgets.py
index 77285ca..0772aa5 100644
--- a/poky/bitbake/lib/progressbar/widgets.py
+++ b/poky/bitbake/lib/progressbar/widgets.py
@@ -3,6 +3,8 @@
 # progressbar  - Text progress bar library for Python.
 # Copyright (c) 2005 Nilton Volpato
 #
+# SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause-Clear
+#
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either