diff --git a/src/Auditore.Library/Properties/AssemblyInfo.cs b/src/Auditore.Library/Properties/AssemblyInfo.cs
index efb21fa..ffd00be 100644
--- a/src/Auditore.Library/Properties/AssemblyInfo.cs
+++ b/src/Auditore.Library/Properties/AssemblyInfo.cs
@@ -31,7 +31,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("Auditore.Library")]
-[assembly: AssemblyCopyright("© 2021-2022 coreizer")]
+[assembly: AssemblyCopyright("© 2021-2024 coreizer")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/src/Auditore.Plugin/Main.cs b/src/Auditore.Plugin/Main.cs
index 3fed928..e5f345c 100644
--- a/src/Auditore.Plugin/Main.cs
+++ b/src/Auditore.Plugin/Main.cs
@@ -112,9 +112,6 @@ public void Begin()
         /// <summary>
         /// プラグインの終了処理を実行します。
         /// </summary>
-        public void End()
-        {
-            ChannelServices.UnregisterChannel(this.serverChannel);
-        }
+        public void End() => ChannelServices.UnregisterChannel(this.serverChannel);
     }
 }
diff --git a/src/Auditore.Plugin/Properties/AssemblyInfo.cs b/src/Auditore.Plugin/Properties/AssemblyInfo.cs
index 97d4258..5a7f280 100644
--- a/src/Auditore.Plugin/Properties/AssemblyInfo.cs
+++ b/src/Auditore.Plugin/Properties/AssemblyInfo.cs
@@ -31,7 +31,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("Auditore.Plugin")]
-[assembly: AssemblyCopyright("© 2021-2022 coreizer")]
+[assembly: AssemblyCopyright("© 2021-2024 coreizer")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/src/Auditore.Remoting/Properties/AssemblyInfo.cs b/src/Auditore.Remoting/Properties/AssemblyInfo.cs
index 73c0c74..f70ced3 100644
--- a/src/Auditore.Remoting/Properties/AssemblyInfo.cs
+++ b/src/Auditore.Remoting/Properties/AssemblyInfo.cs
@@ -31,7 +31,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("Auditore.Remoting")]
-[assembly: AssemblyCopyright("© 2021-2022 coreizer")]
+[assembly: AssemblyCopyright("© 2021-2024 coreizer")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/src/Auditore.Test/Properties/AssemblyInfo.cs b/src/Auditore.Test/Properties/AssemblyInfo.cs
index cb7d83c..6d842c6 100644
--- a/src/Auditore.Test/Properties/AssemblyInfo.cs
+++ b/src/Auditore.Test/Properties/AssemblyInfo.cs
@@ -31,7 +31,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("Auditore.Test")]
-[assembly: AssemblyCopyright("© 2021-2022 coreizer")]
+[assembly: AssemblyCopyright("© 2021-2024 coreizer")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/src/Auditore.Test/frmMain.Designer.cs b/src/Auditore.Test/frmMain.Designer.cs
index 45fe9b5..ed1d0c9 100644
--- a/src/Auditore.Test/frmMain.Designer.cs
+++ b/src/Auditore.Test/frmMain.Designer.cs
@@ -259,7 +259,7 @@ private void InitializeComponent()
             // 
             this.toolStripStatusLabel1.Name = "toolStripStatusLabel1";
             this.toolStripStatusLabel1.Size = new System.Drawing.Size(118, 17);
-            this.toolStripStatusLabel1.Text = "© 2019-2021 coreizer";
+            this.toolStripStatusLabel1.Text = "© 2019-2024 coreizer";
             // 
             // labelUpdatedAt
             //