diff --git a/Polyhedron/include/CGAL/Polyhedron_3_to_lcc.h b/Polyhedron/include/CGAL/Polyhedron_3_to_lcc.h
index 18db0dc8e34..bda362a0d2d 100644
--- a/Polyhedron/include/CGAL/Polyhedron_3_to_lcc.h
+++ b/Polyhedron/include/CGAL/Polyhedron_3_to_lcc.h
@@ -5,7 +5,7 @@
 //
 // $URL$
 // $Id$
-// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
 //
 // Author(s)     : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
 //
diff --git a/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_closest_rotation_traits_3.h b/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_closest_rotation_traits_3.h
index ae1085f0686..b74261b1250 100644
--- a/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_closest_rotation_traits_3.h
+++ b/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_closest_rotation_traits_3.h
@@ -5,7 +5,7 @@
 //
 // $URL$
 // $Id$
-// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
 //
 // Author(s)     : Gael Guennebaud and Ilker O. Yaz
 
diff --git a/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_polar_closest_rotation_traits_3.h b/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_polar_closest_rotation_traits_3.h
index 4ca1c5d54e1..9a94375100e 100644
--- a/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_polar_closest_rotation_traits_3.h
+++ b/Surface_mesh_deformation/include/CGAL/Deformation_Eigen_polar_closest_rotation_traits_3.h
@@ -5,7 +5,7 @@
 //
 // $URL$
 // $Id$
-// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
 //
 // Author(s)     : Gael Guennebaud Ilker O. Yaz