diff --git a/go.mod b/go.mod
index 70a01f448..263bb0412 100644
--- a/go.mod
+++ b/go.mod
@@ -39,7 +39,6 @@ require (
 	github.com/golang/mock v1.3.1
 	github.com/golang/protobuf v1.3.2
 	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
-	github.com/google/btree v1.0.0 // indirect
 	github.com/google/go-cmp v0.3.0
 	github.com/google/uuid v1.1.1
 	github.com/gophercloud/gophercloud v0.0.0-20190208042652-bc37892e1968
@@ -64,7 +63,7 @@ require (
 	github.com/hashicorp/go-retryablehttp v0.5.2
 	github.com/hashicorp/go-rootcerts v1.0.0
 	github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 // indirect
-	github.com/hashicorp/go-tfe v0.3.16
+	github.com/hashicorp/go-tfe v0.3.22
 	github.com/hashicorp/go-uuid v1.0.1
 	github.com/hashicorp/go-version v1.1.0
 	github.com/hashicorp/hcl v0.0.0-20170504190234-a4b07c25de5f
@@ -133,3 +132,5 @@ require (
 	gopkg.in/ini.v1 v1.42.0 // indirect
 	gopkg.in/yaml.v2 v2.2.2
 )
+
+go 1.13
diff --git a/go.sum b/go.sum
index caa540d9d..4f256f40f 100644
--- a/go.sum
+++ b/go.sum
@@ -198,8 +198,10 @@ github.com/hashicorp/go-slug v0.3.0 h1:L0c+AvH/J64iMNF4VqRaRku2DMTEuHioPVS7kMjWI
 github.com/hashicorp/go-slug v0.3.0/go.mod h1:I5tq5Lv0E2xcNXNkmx7BSfzi1PsJ2cNjs3cC3LwyhK8=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 h1:7YOlAIO2YWnJZkQp7B5eFykaIY7C9JndqAFQyVV5BhM=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
-github.com/hashicorp/go-tfe v0.3.16 h1:GS2yv580p0co4j3FBVaC6Zahd9mxdCGehhJ0qqzFMH0=
-github.com/hashicorp/go-tfe v0.3.16/go.mod h1:SuPHR+OcxvzBZNye7nGPfwZTEyd3rWPfLVbCgyZPezM=
+github.com/hashicorp/go-tfe v0.3.21 h1:JVB+DqX4zevWmaVHGsJfElyScf1ZjbF6EUDLPzU96OE=
+github.com/hashicorp/go-tfe v0.3.21/go.mod h1:SuPHR+OcxvzBZNye7nGPfwZTEyd3rWPfLVbCgyZPezM=
+github.com/hashicorp/go-tfe v0.3.22 h1:Wodv4Y3kiC6bTPHQzhrn026V3HLhfwhc1rVlLY8suKs=
+github.com/hashicorp/go-tfe v0.3.22/go.mod h1:SuPHR+OcxvzBZNye7nGPfwZTEyd3rWPfLVbCgyZPezM=
 github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.1 h1:fv1ep09latC32wFoVwnqcnKJGnMSdBanPczbHAYm1BE=
 github.com/hashicorp/go-uuid v1.0.1/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
diff --git a/vendor/github.com/hashicorp/go-tfe/cost_estimate.go b/vendor/github.com/hashicorp/go-tfe/cost_estimate.go
new file mode 100644
index 000000000..f73c75c8f
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-tfe/cost_estimate.go
@@ -0,0 +1,129 @@
+package tfe
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/url"
+	"time"
+)
+
+// Compile-time proof of interface implementation.
+var _ CostEstimates = (*costEstimates)(nil)
+
+// CostEstimates describes all the costEstimate related methods that
+// the Terraform Enterprise API supports.
+//
+// TFE API docs: https://www.terraform.io/docs/enterprise/api/ (TBD)
+type CostEstimates interface {
+	// Read a costEstimate by its ID.
+	Read(ctx context.Context, costEstimateID string) (*CostEstimate, error)
+
+	// Logs retrieves the logs of a costEstimate.
+	Logs(ctx context.Context, costEstimateID string) (io.Reader, error)
+}
+
+// costEstimates implements CostEstimates.
+type costEstimates struct {
+	client *Client
+}
+
+// CostEstimateStatus represents a costEstimate state.
+type CostEstimateStatus string
+
+//List all available costEstimate statuses.
+const (
+	CostEstimateCanceled CostEstimateStatus = "canceled"
+	CostEstimateErrored  CostEstimateStatus = "errored"
+	CostEstimateFinished CostEstimateStatus = "finished"
+	CostEstimatePending  CostEstimateStatus = "pending"
+	CostEstimateQueued   CostEstimateStatus = "queued"
+)
+
+// CostEstimate represents a Terraform Enterprise costEstimate.
+type CostEstimate struct {
+	ID                      string                        `jsonapi:"primary,cost-estimates"`
+	DeltaMonthlyCost        string                        `jsonapi:"attr,delta-monthly-cost"`
+	ErrorMessage            string                        `jsonapi:"attr,error-message"`
+	MatchedResourcesCount   string                        `jsonapi:"attr,matched-resources-count"`
+	PriorMonthlyCost        string                        `jsonapi:"attr,prior-monthly-cost"`
+	ProposedMonthlyCost     string                        `jsonapi:"attr,proposed-monthly-cost"`
+	ResourcesCount          string                        `jsonapi:"attr,resources-count"`
+	Status                  CostEstimateStatus            `jsonapi:"attr,status"`
+	StatusTimestamps        *CostEstimateStatusTimestamps `jsonapi:"attr,status-timestamps"`
+	UnmatchedResourcesCount string                        `jsonapi:"attr,unmatched-resources-count"`
+}
+
+// CostEstimateStatusTimestamps holds the timestamps for individual costEstimate statuses.
+type CostEstimateStatusTimestamps struct {
+	CanceledAt time.Time `json:"canceled-at"`
+	ErroredAt  time.Time `json:"errored-at"`
+	FinishedAt time.Time `json:"finished-at"`
+	PendingAt  time.Time `json:"pending-at"`
+	QueuedAt   time.Time `json:"queued-at"`
+}
+
+// Read a costEstimate by its ID.
+func (s *costEstimates) Read(ctx context.Context, costEstimateID string) (*CostEstimate, error) {
+	if !validStringID(&costEstimateID) {
+		return nil, errors.New("invalid value for cost estimate ID")
+	}
+
+	u := fmt.Sprintf("cost-estimates/%s", url.QueryEscape(costEstimateID))
+	req, err := s.client.newRequest("GET", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	ce := &CostEstimate{}
+	err = s.client.do(ctx, req, ce)
+	if err != nil {
+		return nil, err
+	}
+
+	return ce, nil
+}
+
+// Logs retrieves the logs of a costEstimate.
+func (s *costEstimates) Logs(ctx context.Context, costEstimateID string) (io.Reader, error) {
+	if !validStringID(&costEstimateID) {
+		return nil, errors.New("invalid value for cost estimate ID")
+	}
+
+	// Loop until the context is canceled or the cost estimate is finished
+	// running. The cost estimate logs are not streamed and so only available
+	// once the estimate is finished.
+	for {
+		// Get the costEstimate to make sure it exists.
+		ce, err := s.Read(ctx, costEstimateID)
+		if err != nil {
+			return nil, err
+		}
+
+		switch ce.Status {
+		case CostEstimateQueued:
+			select {
+			case <-ctx.Done():
+				return nil, ctx.Err()
+			case <-time.After(1000 * time.Millisecond):
+				continue
+			}
+		}
+
+		u := fmt.Sprintf("cost-estimates/%s/output", url.QueryEscape(costEstimateID))
+		req, err := s.client.newRequest("GET", u, nil)
+		if err != nil {
+			return nil, err
+		}
+
+		logs := bytes.NewBuffer(nil)
+		err = s.client.do(ctx, req, logs)
+		if err != nil {
+			return nil, err
+		}
+
+		return logs, nil
+	}
+}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a4e96e98c..aebc1ce44 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -315,7 +315,7 @@ github.com/hashicorp/go-rootcerts
 github.com/hashicorp/go-safetemp
 # github.com/hashicorp/go-slug v0.3.0
 github.com/hashicorp/go-slug
-# github.com/hashicorp/go-tfe v0.3.16
+# github.com/hashicorp/go-tfe v0.3.22
 github.com/hashicorp/go-tfe
 # github.com/hashicorp/go-uuid v1.0.1
 github.com/hashicorp/go-uuid