diff --git a/src/Hash.Wpf/App.xaml.cs b/src/Hash.Wpf/App.xaml.cs
index 2d15c84..1416d80 100644
--- a/src/Hash.Wpf/App.xaml.cs
+++ b/src/Hash.Wpf/App.xaml.cs
@@ -37,6 +37,8 @@ public partial class App : Application
 
     public const string SemVer = $"v{Major}.{Minor}.{Build}";
 
+    public static string NowYear => DateTime.Now.Year.ToString();
+
     /// <summary>
     /// Application Entry Point.
     /// </summary>
diff --git a/src/Hash.Wpf/MainWindow.xaml b/src/Hash.Wpf/MainWindow.xaml
index 71dd7d7..451a9d4 100644
--- a/src/Hash.Wpf/MainWindow.xaml
+++ b/src/Hash.Wpf/MainWindow.xaml
@@ -212,7 +212,7 @@
         </TabControl>
         <Grid Grid.Row="3">
             <Label Content="{StaticResource Title}" Padding="5,0"/>
-            <TextBlock x:Name="CopyRight" Text="Copyright © 2021-2024 Hibi_10000" Padding="5,0" HorizontalAlignment="Right"/>
+            <TextBlock Text="{str:StringResource CopyRight}" Padding="5,0" HorizontalAlignment="Right"/>
         </Grid>
     </Grid>
 </Window>
diff --git a/src/Hash.Wpf/MainWindow.xaml.cs b/src/Hash.Wpf/MainWindow.xaml.cs
index b64a635..8411a16 100644
--- a/src/Hash.Wpf/MainWindow.xaml.cs
+++ b/src/Hash.Wpf/MainWindow.xaml.cs
@@ -85,7 +85,6 @@ private void MainWindow_OnLoaded(object sender, RoutedEventArgs e)
             HashForContextEnable.IsChecked = false;
         }
 
-        CopyRight.Text = $"Copyright © 2021-{DateTime.Now.Year} Hibi_10000";
         foreach (string hashTypeName in HashCalculate.GetHashTypeNames())
         {
             HashSelector.Items.Add(new ComboBoxItem { Content = hashTypeName });
diff --git a/src/Hash.Wpf/Strings/ParentResource.xaml b/src/Hash.Wpf/Strings/ParentResource.xaml
index 522bc1f..f0ac91c 100644
--- a/src/Hash.Wpf/Strings/ParentResource.xaml
+++ b/src/Hash.Wpf/Strings/ParentResource.xaml
@@ -24,8 +24,14 @@
                     xmlns:local="clr-namespace:Hash.Wpf">
     <sys:String x:Key="AppName">HashCalculator</sys:String>
     <x:Static x:Key="Version" Member="local:App.SemVer"/>
-    <str:Strings x:Key="Title" StringFormat="{}{0} {1}">
+    <sys:String x:Key="TitleBase">{0} {1}</sys:String>
+    <str:Strings x:Key="Title" StringFormat="{StaticResource TitleBase}">
         <StaticResource ResourceKey="AppName"/>
         <StaticResource ResourceKey="Version"/>
     </str:Strings>
+    <x:Static x:Key="NowYear" Member="local:App.NowYear"/>
+    <sys:String x:Key="CopyRightBase">Copyright © 2021-{0} Hibi_10000</sys:String>
+    <str:Strings x:Key="CopyRight" StringFormat="{StaticResource CopyRightBase}">
+        <StaticResource ResourceKey="NowYear"/>
+    </str:Strings>
 </ResourceDictionary>