diff --git a/go.mod b/go.mod
index f48c41828a..3429e93912 100644
--- a/go.mod
+++ b/go.mod
@@ -147,7 +147,7 @@ require (
 	github.com/urfave/negroni v1.0.0 // indirect
 	github.com/vishvananda/netlink v0.0.0-20171020171820-b2de5d10e38e
 	github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936 // indirect
-	github.com/vmware/govmomi v0.20.0
+	github.com/vmware/govmomi v0.20.1
 	github.com/vmware/photon-controller-go-sdk v0.0.0-20170310013346-4a435daef6cc
 	github.com/xanzy/go-cloudstack v0.0.0-20160728180336-1e2cbf647e57
 	github.com/xlab/handysort v0.0.0-20150421192137-fb3537ed64a1 // indirect
@@ -391,7 +391,7 @@ replace (
 	github.com/urfave/negroni => github.com/urfave/negroni v1.0.0
 	github.com/vishvananda/netlink => github.com/vishvananda/netlink v0.0.0-20171020171820-b2de5d10e38e
 	github.com/vishvananda/netns => github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936
-	github.com/vmware/govmomi => github.com/vmware/govmomi v0.20.0
+	github.com/vmware/govmomi => github.com/vmware/govmomi v0.20.1
 	github.com/vmware/photon-controller-go-sdk => github.com/vmware/photon-controller-go-sdk v0.0.0-20170310013346-4a435daef6cc
 	github.com/xanzy/go-cloudstack => github.com/xanzy/go-cloudstack v0.0.0-20160728180336-1e2cbf647e57
 	github.com/xiang90/probing => github.com/xiang90/probing v0.0.0-20160813154853-07dd2e8dfe18
diff --git a/go.sum b/go.sum
index fba2f8cf34..376f512307 100644
--- a/go.sum
+++ b/go.sum
@@ -386,8 +386,8 @@ github.com/vishvananda/netlink v0.0.0-20171020171820-b2de5d10e38e h1:f1yevOHP+Su
 github.com/vishvananda/netlink v0.0.0-20171020171820-b2de5d10e38e/go.mod h1:+SR5DhBJrl6ZM7CoCKvpw5BKroDKQ+PJqOg65H/2ktk=
 github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936 h1:J9gO8RJCAFlln1jsvRba/CWVUnMHwObklfxxjErl1uk=
 github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936/go.mod h1:ZjcWmFBXmLKZu9Nxj3WKYEafiSqer2rnvPr0en9UNpI=
-github.com/vmware/govmomi v0.20.0 h1:+1IyhvoVb5JET2Wvgw9J3ZDv6CK4sxzUunpH8LhQqm4=
-github.com/vmware/govmomi v0.20.0/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
+github.com/vmware/govmomi v0.20.1 h1:7b/SeTUB3tER8ZLGLLLH3xcnB2xeuLULXmfPFqPSRZA=
+github.com/vmware/govmomi v0.20.1/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
 github.com/vmware/photon-controller-go-sdk v0.0.0-20170310013346-4a435daef6cc h1:uyYiBHCUWsifUdIWrBzUUq9B3FSZKFTAuUyMQczS1q8=
 github.com/vmware/photon-controller-go-sdk v0.0.0-20170310013346-4a435daef6cc/go.mod h1:e6humHha1ekIwTCm+A5Qed5mG8V4JL+ChHcUOJ+L/8U=
 github.com/xanzy/go-cloudstack v0.0.0-20160728180336-1e2cbf647e57 h1:3OK6oXqbbEUeWvTJgg1pZgNjzdCNE6hMu2TragCfwb8=
diff --git a/staging/src/k8s.io/legacy-cloud-providers/go.mod b/staging/src/k8s.io/legacy-cloud-providers/go.mod
index 61b90c135f..ba7b05e696 100644
--- a/staging/src/k8s.io/legacy-cloud-providers/go.mod
+++ b/staging/src/k8s.io/legacy-cloud-providers/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/stretchr/objx v0.1.1 // indirect
 	github.com/stretchr/testify v1.2.2
-	github.com/vmware/govmomi v0.20.0
+	github.com/vmware/govmomi v0.20.1
 	golang.org/x/crypto v0.0.0-20181025213731-e84da0312774
 	golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a
 	google.golang.org/api v0.0.0-20181220000619-583d854617af
diff --git a/staging/src/k8s.io/legacy-cloud-providers/go.sum b/staging/src/k8s.io/legacy-cloud-providers/go.sum
index 8e6a72c350..06c870a193 100644
--- a/staging/src/k8s.io/legacy-cloud-providers/go.sum
+++ b/staging/src/k8s.io/legacy-cloud-providers/go.sum
@@ -82,8 +82,8 @@ github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/vmware/govmomi v0.20.0 h1:+1IyhvoVb5JET2Wvgw9J3ZDv6CK4sxzUunpH8LhQqm4=
-github.com/vmware/govmomi v0.20.0/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
+github.com/vmware/govmomi v0.20.1 h1:7b/SeTUB3tER8ZLGLLLH3xcnB2xeuLULXmfPFqPSRZA=
+github.com/vmware/govmomi v0.20.1/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
 golang.org/x/crypto v0.0.0-20181025213731-e84da0312774 h1:a4tQYYYuK9QdeO/+kEvNYyuR21S+7ve5EANok6hABhI=
 golang.org/x/crypto v0.0.0-20181025213731-e84da0312774/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
diff --git a/vendor/github.com/vmware/govmomi/sts/signer.go b/vendor/github.com/vmware/govmomi/sts/signer.go
index 79ec9e623e..6a3b042bce 100644
--- a/vendor/github.com/vmware/govmomi/sts/signer.go
+++ b/vendor/github.com/vmware/govmomi/sts/signer.go
@@ -265,8 +265,11 @@ func (s *Signer) SignRequest(req *http.Request) error {
 		}
 		bhash := sha256.New().Sum(body)
 
-		// Port in the signature must be that of the reverse proxy port, vCenter's default is port 80
-		port := "80" // TODO: get from lookup service
+		port := req.URL.Port()
+		if port == "" {
+			port = "80" // Default port for the "Host" header on the server side
+		}
+
 		var buf bytes.Buffer
 		msg := []string{
 			nonce,
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 8de917a61e..9550eda578 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -778,7 +778,7 @@ github.com/vishvananda/netlink
 github.com/vishvananda/netlink/nl
 # github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936 => github.com/vishvananda/netns v0.0.0-20171111001504-be1fbeda1936
 github.com/vishvananda/netns
-# github.com/vmware/govmomi v0.20.0 => github.com/vmware/govmomi v0.20.0
+# github.com/vmware/govmomi v0.20.1 => github.com/vmware/govmomi v0.20.1
 github.com/vmware/govmomi
 github.com/vmware/govmomi/find
 github.com/vmware/govmomi/list