diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/tasks/MainBuildTask.java b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/tasks/MainBuildTask.java
index 0b3a87bf..478217ec 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/tasks/MainBuildTask.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/tasks/MainBuildTask.java
@@ -124,7 +124,8 @@ protected void initProps() {
         properties.put("runtimeconfig.secureCheckSalt", launcherSalt);
         if (server.runtime.unlockSecret == null) server.runtime.unlockSecret = SecurityHelper.randomStringToken();
         properties.put("runtimeconfig.unlockSecret", server.runtime.unlockSecret);
-
+        server.runtime.buildNumber++;
+        properties.put("runtimeconfig.buildNumber", server.runtime.buildNumber);
     }
 
     public byte[] transformClass(byte[] bytes, String classname, BuildContext context) {
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/config/LaunchServerRuntimeConfig.java b/LaunchServer/src/main/java/pro/gravit/launchserver/config/LaunchServerRuntimeConfig.java
index 0f9c9c53..756fa2cf 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/config/LaunchServerRuntimeConfig.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/config/LaunchServerRuntimeConfig.java
@@ -11,6 +11,7 @@ public class LaunchServerRuntimeConfig {
     public String unlockSecret;
     public String registerApiKey;
     public String clientCheckSecret;
+    public long buildNumber;
 
     public void verify() {
         if (passwordEncryptKey == null) logger.error("[RuntimeConfig] passwordEncryptKey must not be null");
@@ -25,5 +26,6 @@ public void reset() {
         runtimeEncryptKey = SecurityHelper.randomStringAESKey();
         registerApiKey = SecurityHelper.randomStringToken();
         clientCheckSecret = SecurityHelper.randomStringToken();
+        buildNumber = 0;
     }
 }
diff --git a/LauncherAPI/src/main/java/pro/gravit/launcher/LauncherConfig.java b/LauncherAPI/src/main/java/pro/gravit/launcher/LauncherConfig.java
index 0d90c99d..0e57587d 100644
--- a/LauncherAPI/src/main/java/pro/gravit/launcher/LauncherConfig.java
+++ b/LauncherAPI/src/main/java/pro/gravit/launcher/LauncherConfig.java
@@ -48,6 +48,8 @@ public final class LauncherConfig extends StreamObject {
     public String unlockSecret;
     @LauncherInject("launchercore.env")
     public LauncherEnvironment environment;
+    @LauncherInject("runtimeconfig.buildNumber")
+    public long buildNumber;
 
 
     @LauncherInjectionConstructor
diff --git a/modules b/modules
index ed433be2..b9ec7706 160000
--- a/modules
+++ b/modules
@@ -1 +1 @@
-Subproject commit ed433be234a5d6b4336a6af48194add97b0f2874
+Subproject commit b9ec7706081097211c4fa9cd7a6669a4dadac6aa