Processor Upgrade?

Does anyone know if there is an upgrade for this?

Toshiba L305-S5945
Processor: Intel(R) Pentium(R) Dual CPU T3400 @ 2.16GHz, Intel64 Family 6 Model 15 Stepping 13
Processor Count: 2
RAM: 3963 Mb
Graphics Card: Mobile Intel(R) 4 Series Express Chipset Family, 1853 Mb
Hard Drives: C: Total - 110427 MB, Free - 50241 MB;
Motherboard: TOSHIBA, Portable PC