Sitecore Powershell script for changing item template in all language versions

Question

i want to change the item template in all language version and retain the data. I have tried this :

$rootItem = Get-Item master:"/sitecore/content/home/"
$sourceTemplate = Get-Item "{E6787535-1C98-4C18-9D45-68DF4837BEF8}";
$targetTemplate = Get-Item "{CB1DACB2-0B85-4D92-9BC7-5EC0CF208E5F}";

 

Get-ChildItem $rootItem.FullPath -recurse | Where-Object { $_.TemplateName -eq $sourceTemplate.Name } | ForEach-Object {
    Set-ItemTemplate -Item $_ -TemplateItem $targetTemplate `
        -FieldsToCopy @{'Module ID'="AccordionModuleId" ;'Module Category' = "AccordionModuleCategory"; 'Module Title' = "AccordionModuleTitle"; 'Items' = "AccordionModuleLinks" }
}

But it works fine only for en language and for rest of the languages it is having empty field values. Any way of achieving this?