diff --git a/app/models/invitation.rb b/app/models/invitation.rb
index 8fb8c1a..020242e 100644
--- a/app/models/invitation.rb
+++ b/app/models/invitation.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024-2025 LibreWeddingPlanner contributors
+
 # frozen_string_literal: true
 
 # == Schema Information
diff --git a/spec/factories/invitations.rb b/spec/factories/invitations.rb
index b4ba145..a1dab61 100644
--- a/spec/factories/invitations.rb
+++ b/spec/factories/invitations.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024-2025 LibreWeddingPlanner contributors
+
 # frozen_string_literal: true
 
 FactoryBot.define do
diff --git a/spec/models/invitation_spec.rb b/spec/models/invitation_spec.rb
index 24c963e..f4cc2c3 100644
--- a/spec/models/invitation_spec.rb
+++ b/spec/models/invitation_spec.rb
@@ -1,3 +1,5 @@
+# Copyright (C) 2024-2025 LibreWeddingPlanner contributors
+
 # frozen_string_literal: true
 
 require 'rails_helper'