diff --git a/api/api.go b/api/api.go
index 7d7e1061d..f6fe5a1bd 100644
--- a/api/api.go
+++ b/api/api.go
@@ -2,6 +2,7 @@ package api
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
 	"crypto/x509"
 	"encoding/json"
@@ -354,7 +355,7 @@ func NewClient(config *Config) (*Client, error) {
 			config.Scheme = "https"
 		case "unix":
 			trans := cleanhttp.DefaultTransport()
-			trans.Dial = func(_, _ string) (net.Conn, error) {
+			trans.DialContext = func(_ context.Context, _, _ string) (net.Conn, error) {
 				return net.Dial("unix", parts[1])
 			}
 			config.HttpClient = &http.Client{
diff --git a/api/api_test.go b/api/api_test.go
index f2f2b40e5..51a206895 100644
--- a/api/api_test.go
+++ b/api/api_test.go
@@ -42,7 +42,6 @@ func makeClientWithConfig(
 	if cb1 != nil {
 		cb1(conf)
 	}
-
 	// Create server
 	server := testutil.NewTestServerConfig(t, cb2)
 	conf.Address = server.HTTPAddr
diff --git a/testutil/server.go b/testutil/server.go
index 7daa21ed6..f30116cb0 100644
--- a/testutil/server.go
+++ b/testutil/server.go
@@ -13,6 +13,7 @@ package testutil
 
 import (
 	"bytes"
+	"context"
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
@@ -223,7 +224,7 @@ func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
 	if strings.HasPrefix(consulConfig.Addresses.HTTP, "unix://") {
 		httpAddr = consulConfig.Addresses.HTTP
 		trans := cleanhttp.DefaultTransport()
-		trans.Dial = func(_, _ string) (net.Conn, error) {
+		trans.DialContext = func(_ context.Context, _, _ string) (net.Conn, error) {
 			return net.Dial("unix", httpAddr[7:])
 		}
 		client = &http.Client{
diff --git a/vendor/github.com/hashicorp/go-cleanhttp/cleanhttp.go b/vendor/github.com/hashicorp/go-cleanhttp/cleanhttp.go
index f4596d80c..7d8a57c28 100644
--- a/vendor/github.com/hashicorp/go-cleanhttp/cleanhttp.go
+++ b/vendor/github.com/hashicorp/go-cleanhttp/cleanhttp.go
@@ -3,11 +3,12 @@ package cleanhttp
 import (
 	"net"
 	"net/http"
+	"runtime"
 	"time"
 )
 
-// DefaultTransport returns a new http.Transport with the same default values
-// as http.DefaultTransport, but with idle connections and keepalives disabled.
+// DefaultTransport returns a new http.Transport with similar default values to
+// http.DefaultTransport, but with idle connections and keepalives disabled.
 func DefaultTransport() *http.Transport {
 	transport := DefaultPooledTransport()
 	transport.DisableKeepAlives = true
@@ -22,13 +23,15 @@ func DefaultTransport() *http.Transport {
 func DefaultPooledTransport() *http.Transport {
 	transport := &http.Transport{
 		Proxy: http.ProxyFromEnvironment,
-		Dial: (&net.Dialer{
+		DialContext: (&net.Dialer{
 			Timeout:   30 * time.Second,
 			KeepAlive: 30 * time.Second,
-		}).Dial,
-		TLSHandshakeTimeout: 10 * time.Second,
-		DisableKeepAlives:   false,
-		MaxIdleConnsPerHost: 1,
+		}).DialContext,
+		MaxIdleConns:          100,
+		IdleConnTimeout:       90 * time.Second,
+		TLSHandshakeTimeout:   10 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+		MaxIdleConnsPerHost:   runtime.GOMAXPROCS(0) + 1,
 	}
 	return transport
 }
@@ -42,10 +45,10 @@ func DefaultClient() *http.Client {
 	}
 }
 
-// DefaultPooledClient returns a new http.Client with the same default values
-// as http.Client, but with a shared Transport. Do not use this function
-// for transient clients as it can leak file descriptors over time. Only use
-// this for clients that will be re-used for the same host(s).
+// DefaultPooledClient returns a new http.Client with similar default values to
+// http.Client, but with a shared Transport. Do not use this function for
+// transient clients as it can leak file descriptors over time. Only use this
+// for clients that will be re-used for the same host(s).
 func DefaultPooledClient() *http.Client {
 	return &http.Client{
 		Transport: DefaultPooledTransport(),
diff --git a/vendor/vendor.json b/vendor/vendor.json
index 88481b9ab..1e949da04 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -438,10 +438,10 @@
 			"revisionTime": "2015-10-22T18:15:14Z"
 		},
 		{
-			"checksumSHA1": "Uzyon2091lmwacNsl1hCytjhHtg=",
+			"checksumSHA1": "b8F628srIitj5p7Y130xc9k0QWs=",
 			"path": "github.com/hashicorp/go-cleanhttp",
-			"revision": "ad28ea4487f05916463e2423a55166280e8254b5",
-			"revisionTime": "2016-04-07T17:41:26Z"
+			"revision": "3573b8b52aa7b37b9358d966a898feb387f62437",
+			"revisionTime": "2017-02-11T01:34:15Z"
 		},
 		{
 			"checksumSHA1": "jPxyofQxI1PRPq6LPc6VlcRn5fI=",