Go build fails with cannot use resourceGroupsSystem() error

[robert-clarifai]

Go build fails with error

 % go build
# github.com/cognotektgmbh/terraform-provider-jumpcloud/jumpcloud
jumpcloud/provider.go:29:4: cannot use resourceGroupsSystem() (type *"github.com/hashicorp/terraform/helper/schema".Resource) as type *"github.com/hashicorp/terraform-plugin-sdk/helper/schema".Resource in map value

% go version
go version go1.15.2 darwin/amd64

% terraform version
Terraform v0.13.2

Your version of Terraform is out of date! The latest version
is 0.13.4. You can update by downloading from https://www.terraform.io/downloads.html