diff --git a/lib/singbox/service/ffi_singbox_service.dart b/lib/singbox/service/ffi_singbox_service.dart
index 61b72675..83583a0f 100644
--- a/lib/singbox/service/ffi_singbox_service.dart
+++ b/lib/singbox/service/ffi_singbox_service.dart
@@ -287,7 +287,7 @@ class FFISingboxService with InfraLogger implements SingboxService {
         logger.debug("stopping");
         receiver.close();
         _outboundsStream = null;
-        final err = _box.stopCommandClient(4).cast<Utf8>().toDartString();
+        final err = _box.stopCommandClient(5).cast<Utf8>().toDartString();
         if (err.isNotEmpty) {
           _logger.error("error stopping group client");
         }
@@ -311,7 +311,7 @@ class FFISingboxService with InfraLogger implements SingboxService {
 
     try {
       final err = _box
-          .startCommandClient(4, receiver.sendPort.nativePort)
+          .startCommandClient(5, receiver.sendPort.nativePort)
           .cast<Utf8>()
           .toDartString();
       if (err.isNotEmpty) {
@@ -334,7 +334,7 @@ class FFISingboxService with InfraLogger implements SingboxService {
       onCancel: (_) {
         logger.debug("stopping");
         receiver.close();
-        final err = _box.stopCommandClient(12).cast<Utf8>().toDartString();
+        final err = _box.stopCommandClient(13).cast<Utf8>().toDartString();
         if (err.isNotEmpty) {
           logger.error("failed stopping: $err");
         }
@@ -358,7 +358,7 @@ class FFISingboxService with InfraLogger implements SingboxService {
 
     try {
       final err = _box
-          .startCommandClient(12, receiver.sendPort.nativePort)
+          .startCommandClient(13, receiver.sendPort.nativePort)
           .cast<Utf8>()
           .toDartString();
       if (err.isNotEmpty) {
diff --git a/libcore b/libcore
index aba59332..aab998fa 160000
--- a/libcore
+++ b/libcore
@@ -1 +1 @@
-Subproject commit aba593322e3f90f40ff050325d5acbb012dbb128
+Subproject commit aab998fae98d47abf8531e5ed8a736c62bd0f3dc