https://github.com/terraform-google-modules/terraform-google-bastion-host/blob/3cb05d34485fcc915f3ea4a44c68bf4bd1da5bd3/main.tf#L47 references ``` source = "terraform-google-modules/vm/google//modules/instance_template" version = "~> 11.0" ``` which has https://github.com/terraform-google-modules/terraform-google-vm/blob/0cf3225e2f347794e0f9f50ffc36cad17845101c/modules/instance_template/versions.tf#L22 ``` google-beta = { source = "hashicorp/google-beta" version = ">= 5.5, < 6" } ``` Needs https://github.com/terraform-google-modules/terraform-google-vm/pull/400 to be merged :/