diff --git a/src/about.rs b/src/about.rs
index a8b2bd8..492eda5 100644
--- a/src/about.rs
+++ b/src/about.rs
@@ -1,6 +1,7 @@
 // Copyright (c) 2023-2024 Sophie Herold
 // Copyright (c) 2023 Automeris naranja
 // Copyright (c) 2023 Christopher Davis
+// Copyright (c) 2024 Dexter Reed
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
diff --git a/src/application.rs b/src/application.rs
index 01dbbab..b559224 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -1,6 +1,5 @@
 // Copyright (c) 2020-2023 Christopher Davis
 // Copyright (c) 2022-2024 Sophie Herold
-// Copyright (c) 2022-2023 Sabri Ünal
 // Copyright (c) 2023 Matteo Nardi
 // Copyright (c) 2023 Julian Hofer
 // Copyright (c) 2023 Huan Nguyen
diff --git a/src/widgets/error_details.rs b/src/widgets/error_details.rs
index 093fa56..8a7ddc1 100644
--- a/src/widgets/error_details.rs
+++ b/src/widgets/error_details.rs
@@ -1,3 +1,20 @@
+// Copyright (c) 2024 Sophie Herold
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 use adw::prelude::*;
 use adw::subclass::prelude::*;
 use gtk::CompositeTemplate;
diff --git a/src/widgets/image_page.rs b/src/widgets/image_page.rs
index 0f3db88..43931b4 100644
--- a/src/widgets/image_page.rs
+++ b/src/widgets/image_page.rs
@@ -1,4 +1,4 @@
-// Copyright (c) 2022-2023 Sophie Herold
+// Copyright (c) 2022-2024 Sophie Herold
 // Copyright (c) 2022 Christopher Davis
 // Copyright (c) 2023 Julian Hofer
 //
diff --git a/src/window.rs b/src/window.rs
index 2aa2842..cb16481 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -7,7 +7,6 @@
 // Copyright (c) 2023 FineFindus
 // Copyright (c) 2023 qwel
 // Copyright (c) 2023 Huan Thieu Nguyen
-// Copyright (c) 2023 Sabri Ünal
 // Copyright (c) 2024 James Frost
 //
 // This program is free software: you can redistribute it and/or modify
diff --git a/src/window/actions.rs b/src/window/actions.rs
index e1fc0af..b50ff62 100644
--- a/src/window/actions.rs
+++ b/src/window/actions.rs
@@ -1,3 +1,20 @@
+// Copyright (c) 2024 Sophie Herold
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 use std::ops::Deref;
 
 use adw::subclass::prelude::*;