diff --git a/ElectronicObserver/Utility/SoftwareInformation.cs b/ElectronicObserver/Utility/SoftwareInformation.cs
index 3b81f6099..0b752bb55 100644
--- a/ElectronicObserver/Utility/SoftwareInformation.cs
+++ b/ElectronicObserver/Utility/SoftwareInformation.cs
@@ -38,14 +38,14 @@ public static class SoftwareInformation
 		/// <summary>
 		/// バージョン(英語)
 		/// </summary>
-		public static string VersionEnglish => "4.4.1.7";
+		public static string VersionEnglish => "4.5.1";
 
 
 
 		/// <summary>
 		/// 更新日時
 		/// </summary>
-		public static DateTime UpdateTime => DateTimeHelper.CSVStringToTime("2020/04/26 20:00:00");
+		public static DateTime UpdateTime => DateTimeHelper.CSVStringToTime("2020/05/01 10:00:00");