diff --git a/cmd/lattice-agent/main.go b/cmd/lattice-agent/main.go
index 6a93601..1fc06cc 100644
--- a/cmd/lattice-agent/main.go
+++ b/cmd/lattice-agent/main.go
@@ -33,7 +33,7 @@ import (
 	"github.com/LatticeNet/lattice-sdk/model"
 )
 
-var version = "0.3.3-alpha.1"
+var version = "0.3.3-alpha.2"
 var compatServerMin = "v0.2.2-alpha.2"
 var compatDashboardMin = "v0.2.2-alpha.7"
 var compatChannel = "alpha"
diff --git a/cmd/lattice-agent/main_test.go b/cmd/lattice-agent/main_test.go
index f7cfddc..ae46379 100644
--- a/cmd/lattice-agent/main_test.go
+++ b/cmd/lattice-agent/main_test.go
@@ -24,8 +24,8 @@ func (f roundTripFunc) RoundTrip(r *http.Request) (*http.Response, error) {
 }
 
 func TestVersionMatchesCurrentRelease(t *testing.T) {
-	if version != "0.3.3-alpha.1" {
-		t.Fatalf("version = %q, want 0.3.3-alpha.1", version)
+	if version != "0.3.3-alpha.2" {
+		t.Fatalf("version = %q, want 0.3.3-alpha.2", version)
 	}
 }
 
diff --git a/internal/proxyusage/singbox.go b/internal/proxyusage/singbox.go
index 2a42f9c..2bde32a 100644
--- a/internal/proxyusage/singbox.go
+++ b/internal/proxyusage/singbox.go
@@ -15,6 +15,10 @@ import (
 const (
 	defaultSingBoxStatsPattern = "user>>>"
 	defaultSingBoxStatsTimeout = 5 * time.Second
+	// sing-box rewrites its generated StatsService descriptor at runtime to
+	// the V2Ray-compatible service name. The protobuf messages keep the local
+	// experimental.v2rayapi package, but clients must invoke this aliased path.
+	singBoxStatsQueryMethod = "/v2ray.core.app.stats.command.StatsService/QueryStats"
 )
 
 // SingBoxStatsSource collects per-user usage from sing-box's experimental
@@ -125,9 +129,11 @@ func grpcQueryStats(ctx context.Context, addr, pattern string) ([]nameValue, err
 		return nil, err
 	}
 	defer func() { _ = conn.Close() }()
-	resp, err := singboxstats.NewStatsServiceClient(conn).QueryStats(ctx, &singboxstats.QueryStatsRequest{
+	request := &singboxstats.QueryStatsRequest{
 		Patterns: []string{pattern},
-	})
+	}
+	resp := new(singboxstats.QueryStatsResponse)
+	err = conn.Invoke(ctx, singBoxStatsQueryMethod, request, resp)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/proxyusage/singbox_test.go b/internal/proxyusage/singbox_test.go
index 3f45207..1a3677a 100644
--- a/internal/proxyusage/singbox_test.go
+++ b/internal/proxyusage/singbox_test.go
@@ -107,7 +107,12 @@ func TestGRPCQueryStatsEndToEnd(t *testing.T) {
 	}}
 	listener := bufconn.Listen(1 << 20)
 	server := grpc.NewServer()
-	singboxstats.RegisterStatsServiceServer(server, fake)
+	// sing-box aliases the generated service name for V2Ray client
+	// compatibility. Register the fake under that runtime name so this test
+	// catches clients that only work against the unaliased generated package.
+	desc := singboxstats.StatsService_ServiceDesc
+	desc.ServiceName = "v2ray.core.app.stats.command.StatsService"
+	server.RegisterService(&desc, fake)
 	go func() { _ = server.Serve(listener) }()
 	t.Cleanup(func() {
 		server.Stop()