diff --git a/RELICENSING.md b/RELICENSING.md
index f920377af3..a8658d729a 100644
--- a/RELICENSING.md
+++ b/RELICENSING.md
@@ -132,6 +132,11 @@ the Developer Certificate of Origin, version 1.1:
 - Joseph Goldstone (JGoldstone)
 - Matthew Levine (melevine)
 - Yang Yang (yangyangl, but now cometyang)
+- Merwan Achibet (merwaaan)
+- Anthony Nemoff (ix-anemoff)
+- Damien Courtois (ix-dcourtois)
+- Carl Rand (crand)
+- Gregor Mückl (gmueckl)
 
 **Prior authors, please submit a PR against this file that adds your name
 above. If, at the time of your prior contributions, you were employed by a
diff --git a/src/fits.imageio/fits_pvt.cpp b/src/fits.imageio/fits_pvt.cpp
index 83de42f5dc..2f3f41c342 100644
--- a/src/fits.imageio/fits_pvt.cpp
+++ b/src/fits.imageio/fits_pvt.cpp
@@ -1,5 +1,5 @@
 // Copyright Contributors to the OpenImageIO project.
-// SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+// SPDX-License-Identifier: Apache-2.0
 // https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 #include "fits_pvt.h"
diff --git a/src/png.imageio/pnginput.cpp b/src/png.imageio/pnginput.cpp
index 32ced7dac0..450bb6ede4 100644
--- a/src/png.imageio/pnginput.cpp
+++ b/src/png.imageio/pnginput.cpp
@@ -1,5 +1,5 @@
 // Copyright Contributors to the OpenImageIO project.
-// SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+// SPDX-License-Identifier: Apache-2.0
 // https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 #include <cmath>
diff --git a/src/pnm.imageio/pnminput.cpp b/src/pnm.imageio/pnminput.cpp
index cdd51fe31c..5975d3e27a 100644
--- a/src/pnm.imageio/pnminput.cpp
+++ b/src/pnm.imageio/pnminput.cpp
@@ -1,5 +1,5 @@
 // Copyright Contributors to the OpenImageIO project.
-// SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+// SPDX-License-Identifier: Apache-2.0
 // https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 #include <cstdlib>
diff --git a/src/tiff.imageio/tiffinput.cpp b/src/tiff.imageio/tiffinput.cpp
index c1e027048f..3c5cbd9834 100644
--- a/src/tiff.imageio/tiffinput.cpp
+++ b/src/tiff.imageio/tiffinput.cpp
@@ -1,5 +1,5 @@
 // Copyright Contributors to the OpenImageIO project.
-// SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+// SPDX-License-Identifier: Apache-2.0
 // https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 
diff --git a/src/tiff.imageio/tiffoutput.cpp b/src/tiff.imageio/tiffoutput.cpp
index 21e05001da..51855aa73c 100644
--- a/src/tiff.imageio/tiffoutput.cpp
+++ b/src/tiff.imageio/tiffoutput.cpp
@@ -1,5 +1,5 @@
 // Copyright Contributors to the OpenImageIO project.
-// SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+// SPDX-License-Identifier: Apache-2.0
 // https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 
diff --git a/testsuite/pnm/run.py b/testsuite/pnm/run.py
index 49719961de..4fd5a6ed67 100755
--- a/testsuite/pnm/run.py
+++ b/testsuite/pnm/run.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 # Copyright Contributors to the OpenImageIO project.
-# SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+# SPDX-License-Identifier: Apache-2.0
 # https://github.com/AcademySoftwareFoundation/OpenImageIO
 
 imagedir = OIIO_TESTSUITE_IMAGEDIR + "/pnm"
diff --git a/testsuite/texture-udim2/run.py b/testsuite/texture-udim2/run.py
index 6957d5ed30..368425de05 100755
--- a/testsuite/texture-udim2/run.py
+++ b/testsuite/texture-udim2/run.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 # Copyright Contributors to the OpenImageIO project.
-# SPDX-License-Identifier: BSD-3-Clause and Apache-2.0
+# SPDX-License-Identifier: Apache-2.0
 # https://github.com/AcademySoftwareFoundation/OpenImageIO