Cannot provision Api's with dotnet_framework_version = "v6.0"

I’m trying to upgrade API’s from dot net framework version 5 → 6. When applying this change in terraform I’m provided with the following error:
Error: expected site_config.0.dotnet_framework_version to be one of [v2.0 v4.0 v5.0], got v6.0.
I have upgraded to newest version of terraform 1.1.14, but still get this error.

I’m running:
Terraform v1.1.4
on windows_amd64

with script:
site_config {

dotnet_framework_version = "v6.0"

linux_fx_version = "DOTNETCORE|6.0"

Anyone able to guide me in the right direction :slight_smile: ?