diff --git a/internal/executor/sandbox/executor.go b/internal/executor/sandbox/executor.go
index 7a3a63f..746717b 100644
--- a/internal/executor/sandbox/executor.go
+++ b/internal/executor/sandbox/executor.go
@@ -59,7 +59,7 @@ func (e *Sandbox) Run(cmds []stage.Cmd) ([]stage.ExecutorResult, error) {
 			)
 		}
 	}
-	slog.Debug("sandbox execute", "total protobuf cmd size", totalPbCmdSize)
+	slog.Info("sandbox execute", "total protobuf cmd size", totalPbCmdSize)
 	pbReq := &pb.Request{Cmd: pbCmds}
 	pbRet, err := e.execClient.Exec(context.TODO(), pbReq)
 	if err != nil {
diff --git a/internal/executor/sandbox/grpc.go b/internal/executor/sandbox/grpc.go
index 6bb75c3..09ac7ef 100644
--- a/internal/executor/sandbox/grpc.go
+++ b/internal/executor/sandbox/grpc.go
@@ -23,6 +23,9 @@ func createExecClient(execServer, token string) (pb.ExecutorClient, error) {
 func createGRPCConnection(addr, token string) (*grpc.ClientConn, error) {
 	opts := []grpc.DialOption{
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithDefaultCallOptions(
+			grpc.MaxCallRecvMsgSize(512 * 1024 * 1024), // 512 MB
+		),
 	}
 	if token != "" {
 		opts = append(opts, grpc.WithPerRPCCredentials(newTokenAuth(token)))