Upgrade Mac mini from El Capitan to High Sierra 10.13

Hi. I need to upgrade mac Mini from El Capitan to High Sierra 10.13

Model Name: Mac mini

 Model Identifier: Macmini4,1

 Processor Name: Intel Core 2 Duo

 Processor Speed: 2.4 GHz

 Number of Processors: 1

 Total Number of Cores: 2

 L2 Cache: 3 MB

 Memory: 8 GB

 Bus Speed: 1.07 GHz

 Boot ROM Version: MM41.0047.B00

 SMC Version (system): 1.65f2

 Serial Number (system): DC****D6H

[Edited by Moderator]