diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 34a3019cf9dd96f55e7c967d73538d2e059c42cb..94c7887753908a748020f65c449bc01c0c14aa2e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 ## SPDX-License-Identifier: BSD-3-Clause
 ## Copyright (C) 2019-2021 Mike Miller
 ## Copyright (C) 2019, 2023 Colin B. Macdonald
+## Copyright (C) 2023 Vipul Cariappa
 ##
 ## .gitlab-ci.yml - GitLab CI configuration for octave-pythonic
 
diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index b2ec81c89e98cde2426909f44a0646233481942d..99da14b07555d45639f08e55a574ab734eccaa9b 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -2,6 +2,8 @@
 
 - NVS Abhilash
 - Juan Pablo Carbajal
+- Vipul Cariappa
+- Chris Gorman
 - Avinoam Kalma
 - Vijay Krishnavanshi
 - Colin Macdonald
diff --git a/inst/@py/py.m b/inst/@py/py.m
index 8f3ee9e4efa169ab2e12d3d77b1ba08081be2435..b1df79d87ca2aebfc7c658a8c0c1c13b1c8e1506 100644
--- a/inst/@py/py.m
+++ b/inst/@py/py.m
@@ -1,4 +1,6 @@
 ## Copyright (C) 2016 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
+## Copyright (C) 2023 Colin B. Macdonald
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/inst/@py/subsref.m b/inst/@py/subsref.m
index 9312f677f19ea77b3d545e86dfb0a153abba393a..9fb2061e3ef5120179f9d22b2be6d83c85912b5d 100644
--- a/inst/@py/subsref.m
+++ b/inst/@py/subsref.m
@@ -1,4 +1,6 @@
 ## Copyright (C) 2016 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
+## Copyright (C) 2023 Colin B. Macdonald
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/inst/@pyobject/pyobject.m b/inst/@pyobject/pyobject.m
index 073131d175a5453f83607bd6479ea7a8d452c7a7..0bf61afe40525d015371d31466f93500fc4fd92c 100644
--- a/inst/@pyobject/pyobject.m
+++ b/inst/@pyobject/pyobject.m
@@ -1,6 +1,7 @@
-## Copyright (C) 2016, 2019 Colin B. Macdonald
+## Copyright (C) 2016, 2019, 2023 Colin B. Macdonald
 ## Copyright (C) 2016 Abhinav Tripathi
 ## Copyright (C) 2016-2019 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/inst/@pyobject/subsasgn.m b/inst/@pyobject/subsasgn.m
index 70ceeb67a2203456343f6a970f98a13f8734da1c..6f6a3392bd7eb0ec46c7583079fbaa4e78c2ade6 100644
--- a/inst/@pyobject/subsasgn.m
+++ b/inst/@pyobject/subsasgn.m
@@ -1,4 +1,6 @@
-## Copyright (C) 2016 Colin B. Macdonald
+## Copyright (C) 2016, 2023 Colin B. Macdonald
+## Copyright (C) 2019 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/inst/@pyobject/subsref.m b/inst/@pyobject/subsref.m
index 1f5c82de51df8297543e4b2e5b0a3d53cbb21614..42f3022c80c9d00e94fb830573cdb8402c60f5bb 100644
--- a/inst/@pyobject/subsref.m
+++ b/inst/@pyobject/subsref.m
@@ -1,4 +1,6 @@
-## Copyright (C) 2016 Colin B. Macdonald
+## Copyright (C) 2016, 2023 Colin B. Macdonald
+## Copyright (C) 2019 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/inst/pyversion.m b/inst/pyversion.m
index 677d9c5d468af4790692b2b7b78980472a9052eb..255ca9a7c41f9c1207c4da1c64083a13906ebad8 100644
--- a/inst/pyversion.m
+++ b/inst/pyversion.m
@@ -1,4 +1,5 @@
 ## Copyright (C) 2016 Mike Miller
+## Copyright (C) 2023 Vipul Cariappa
 ## SPDX-License-Identifier: GPL-3.0-or-later
 ##
 ## This file is part of Octave Pythonic.
diff --git a/src/oct-py-eval.cc b/src/oct-py-eval.cc
index fe7e43a5e36ea9af15460538686e2261f9df7f76..ae7926c16b0f67f0dc83131edc767da8a9d78865 100644
--- a/src/oct-py-eval.cc
+++ b/src/oct-py-eval.cc
@@ -2,7 +2,9 @@
 
 SPDX-License-Identifier: GPL-3.0-or-later
 
-Copyright (C) 2016 Mike Miller
+Copyright (C) 2016, 2019 Mike Miller
+Copyright (C) 2023 Vipul Cariappa
+Copyright (C) 2023 Colin B. Macdonald
 
 This file is part of Octave Pythonic.
 
diff --git a/src/oct-py-init.cc b/src/oct-py-init.cc
index 883b4cbd0b6c973daa737cd347b01e25cc47c40c..e0d6f118c9d0a26745dad04eb5a3a0ea1a07aacc 100644
--- a/src/oct-py-init.cc
+++ b/src/oct-py-init.cc
@@ -2,7 +2,9 @@
 
 SPDX-License-Identifier: GPL-3.0-or-later
 
-Copyright (C) 2017 Mike Miller
+Copyright (C) 2017, 2019 Mike Miller
+Copyright (C) 2023 Vipul Cariappa
+Copyright (C) 2023 Colin B. Macdonald
 
 This file is part of Octave Pythonic.
 
diff --git a/src/oct-py-types.cc b/src/oct-py-types.cc
index 58144ea46f96926d66713451c1abe9e4c32fa247..76a435d5b56273e6e16b928dbf8f083e9f537f21 100644
--- a/src/oct-py-types.cc
+++ b/src/oct-py-types.cc
@@ -3,6 +3,8 @@
 SPDX-License-Identifier: GPL-3.0-or-later
 
 Copyright (C) 2016-2019 Mike Miller
+Copyright (C) 2023 Vipul Cariappa
+Copyright (C) 2023 Colin B. Macdonald
 
 This file is part of Octave Pythonic.
 
diff --git a/src/oct-py-util.cc b/src/oct-py-util.cc
index ce74e2bb05f1155c04671dd00231e58a0b5f729a..f139623f67826a320e9ff709c193d4d0da9a471c 100644
--- a/src/oct-py-util.cc
+++ b/src/oct-py-util.cc
@@ -4,6 +4,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 
 Copyright (C) 2016-2019 Mike Miller
 Copyright (C) 2019, 2023 Colin B. Macdonald
+Copyright (C) 2023 Vipul Cariappa
 
 This file is part of Octave Pythonic.
 
diff --git a/src/pycall.cc b/src/pycall.cc
index e26e4e65baa19b8a040b041d360ef0d2486ccf52..986014467daf68f143d9a0581aeb68a2e9c6734e 100644
--- a/src/pycall.cc
+++ b/src/pycall.cc
@@ -3,6 +3,8 @@
 SPDX-License-Identifier: GPL-3.0-or-later
 
 Copyright (C) 2015-2019 Mike Miller
+Copyright (C) 2023 Vipul Cariappa
+Copyright (C) 2023 Colin B. Macdonald
 
 This file is part of Octave Pythonic.