diff --git a/ReleaseUpdater/ReleaseUpdaterFacade.cs b/ReleaseUpdater/ReleaseUpdaterFacade.cs
index 2701bab..f333cdc 100644
--- a/ReleaseUpdater/ReleaseUpdaterFacade.cs
+++ b/ReleaseUpdater/ReleaseUpdaterFacade.cs
@@ -88,9 +88,16 @@ public static class ReleaseUpdaterFacade
 
             BeforeInstall?.Invoke();
 
+
             if (updaterExePath == null) updaterExePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Updater.exe");
             var args = $"--zip \"{zipPath}\" --installPath \"{installPath}\" --appExe \"{appExe}\"";
 
+            if (exitCurrentApp)
+            {
+                int pid = Process.GetCurrentProcess().Id;
+                args += $" --waitProcess \"{pid}\"";
+            }
+
             var process = Process.Start(new ProcessStartInfo
             {
                 FileName = updaterExePath,
diff --git a/Updater/Core/Options.cs b/Updater/Core/Options.cs
index abec43f..31ced91 100644
--- a/Updater/Core/Options.cs
+++ b/Updater/Core/Options.cs
@@ -18,10 +18,13 @@ public sealed class Options
     /// <summary>Необязательно: подождите миллисекунды перед запуском обновления.</summary>
     public int UpdateDelayMs { get; init; } = 500;
 
-    public static string Usage =>
-        "Usage: Updater.exe --zip <path.zip> --installPath <dir> --appExe <file.exe> [--restartDelayMs <int>] [--updateDelayMs <int>]";
+    /// <summary>Необязательно: дождаться завершения процесса.</summary>
+    public int? WaitProcess { get; init; } = null;
 
-    /// <summary>Папрсинг CLI аргументов в Options.</summary>
+    public static string Usage =>
+        "Usage: Updater.exe --zip <path.zip> --installPath <dir> --appExe <file.exe> [--restartDelayMs <int>] [--updateDelayMs <int>] [--waitProcess <int>]";
+
+    /// <summary>Парсинг CLI аргументов в Options.</summary>
     public static Options Parse(string[] args)
     {
         var dict = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
@@ -46,7 +49,8 @@ public sealed class Options
             InstallPath = Path.GetFullPath(install),
             AppExe = exe,
             RestartDelayMs = dict.TryGetValue("restartDelayMs", out var d) && int.TryParse(d, out var n) ? n : 500,
-            UpdateDelayMs = dict.TryGetValue("updateDelayMs", out var d2) && int.TryParse(d2, out var n2) ? n2 : 500
+            UpdateDelayMs = dict.TryGetValue("updateDelayMs", out var d2) && int.TryParse(d2, out var n2) ? n2 : 500,
+            WaitProcess = dict.TryGetValue("waitProcess", out var pid) && int.TryParse(pid, out var pid_) ? pid_ : null,
         };
     }
 
diff --git a/Updater/Program.cs b/Updater/Program.cs
index 861e88d..cb91585 100644
--- a/Updater/Program.cs
+++ b/Updater/Program.cs
@@ -1,4 +1,6 @@
-using Updater.Core;
+using System.Diagnostics;
+using System.Security.Cryptography;
+using Updater.Core;
 
 namespace Updater;
 
@@ -22,6 +24,22 @@ internal sealed class Program
 
         Thread.Sleep(options.UpdateDelayMs);
 
+        if (options.WaitProcess != null)
+        try
+        {
+            using (var proc = Process.GetProcessById(options.WaitProcess.Value))
+            {
+                logger.Info($"Waiting for the process to complete {options.WaitProcess}...");
+                proc.WaitForExit(); // блокирует выполнение до завершения процесса
+                logger.Info("Process is completed.");
+            }
+        }
+        catch (ArgumentException)
+        {
+                logger.Info($"Process with PID {options.WaitProcess} not found.");
+        }
+
+
         var extractor = new ZipExtractor(logger);
         var installer = new SafeFileInstaller(logger);
         var procMgr = new ProcessManager(logger);