diff --git a/Libraries/LibGfx/ClassicWindowTheme.cpp b/Libraries/LibGfx/ClassicWindowTheme.cpp
index 39d6a166226..01957ebeea9 100644
--- a/Libraries/LibGfx/ClassicWindowTheme.cpp
+++ b/Libraries/LibGfx/ClassicWindowTheme.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/Libraries/LibGfx/ClassicWindowTheme.h b/Libraries/LibGfx/ClassicWindowTheme.h
index fd36688aab0..a4608ea4a9f 100644
--- a/Libraries/LibGfx/ClassicWindowTheme.h
+++ b/Libraries/LibGfx/ClassicWindowTheme.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/Libraries/LibGfx/WindowTheme.cpp b/Libraries/LibGfx/WindowTheme.cpp
index 350333959bd..dddf8d06307 100644
--- a/Libraries/LibGfx/WindowTheme.cpp
+++ b/Libraries/LibGfx/WindowTheme.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/Libraries/LibGfx/WindowTheme.h b/Libraries/LibGfx/WindowTheme.h
index a04a4e37ed2..21c5f079757 100644
--- a/Libraries/LibGfx/WindowTheme.h
+++ b/Libraries/LibGfx/WindowTheme.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without