replace properties on psobject

replace.ps1

$MyObject = [PSCustomObject]@{ Value = 15; Value2 = 13; Value3 = "j" }
$Fields = @{
    Value = "special"
    Value2 = "Different"
}


$hashtable = @{}
foreach ($property in $MyObject.PSObject.Properties) {
    if ($Fields.ContainsKey($property.Name))
    {
        $hashtable[$Fields[$property.name]] = $property.Value
    }
    else 
    {
        $hashtable[$property.Name] = $property.Value
    }
}

[PsCustomObject]$hashtable