diff --git a/vendor/manifest b/vendor/manifest
index 317c8023..645998df 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -135,7 +135,7 @@
 		{
 			"importpath": "github.com/matrix-org/gomatrixserverlib",
 			"repository": "https://github.com/matrix-org/gomatrixserverlib",
-			"revision": "8540d3dfc13c797cd3200640bc06e0286ab355aa",
+			"revision": "afa71391f946312c40639a419045e06b8ff2309a",
 			"branch": "master"
 		},
 		{
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/base64.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/base64.go
index 38ae7695..dc895d17 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/base64.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/base64.go
@@ -53,6 +53,12 @@ func (b64 Base64String) MarshalJSON() ([]byte, error) {
 	return json.Marshal(b64.Encode())
 }
 
+// MarshalYAML implements yaml.Marshaller
+// It just encodes the bytes as base64, which is a valid YAML string
+func (b64 Base64String) MarshalYAML() (interface{}, error) {
+	return b64.Encode(), nil
+}
+
 // UnmarshalJSON decodes a JSON string and then decodes the resulting base64.
 // This takes a pointer receiver because it needs to write the result of decoding.
 func (b64 *Base64String) UnmarshalJSON(raw []byte) (err error) {
@@ -65,3 +71,14 @@ func (b64 *Base64String) UnmarshalJSON(raw []byte) (err error) {
 	err = b64.Decode(str)
 	return
 }
+
+// UnmarshalYAML implements yaml.Unmarshaller
+// it unmarshals the input as a yaml string and then base64-decodes the result
+func (b64 *Base64String) UnmarshalYAML(unmarshal func(interface{}) error) (err error) {
+	var str string
+	if err = unmarshal(&str); err != nil {
+		return
+	}
+	err = b64.Decode(str)
+	return
+}
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/base64_test.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/base64_test.go
index 9ef94046..e0a8beb0 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/base64_test.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/base64_test.go
@@ -18,6 +18,8 @@ package gomatrixserverlib
 import (
 	"encoding/json"
 	"testing"
+
+	"gopkg.in/yaml.v2"
 )
 
 func TestMarshalBase64(t *testing.T) {
@@ -93,3 +95,58 @@ func TestMarshalBase64Slice(t *testing.T) {
 		t.Fatalf("json.Marshal(%v): wanted %q got %q", input, want, string(got))
 	}
 }
+
+func TestMarshalYAMLBase64(t *testing.T) {
+	input := Base64String("this\xffis\xffa\xfftest")
+	want := "dGhpc/9pc/9h/3Rlc3Q\n"
+	got, err := yaml.Marshal(input)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(got) != want {
+		t.Fatalf("yaml.Marshal(%v): wanted %q got %q", input, want, string(got))
+	}
+}
+
+func TestMarshalYAMLBase64Struct(t *testing.T) {
+	input := struct{ Value Base64String }{Base64String("this\xffis\xffa\xfftest")}
+	want := "value: dGhpc/9pc/9h/3Rlc3Q\n"
+	got, err := yaml.Marshal(input)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(got) != want {
+		t.Fatalf("yaml.Marshal(%v): wanted %q got %q", input, want, string(got))
+	}
+}
+
+func TestUnmarshalYAMLBase64(t *testing.T) {
+	input := []byte("dGhpc/9pc/9h/3Rlc3Q")
+	want := Base64String("this\xffis\xffa\xfftest")
+	var got Base64String
+	err := yaml.Unmarshal(input, &got)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(got) != string(want) {
+		t.Fatalf("yaml.Unmarshal(%q): wanted %q got %q", string(input), want, string(got))
+	}
+}
+
+func TestUnmarshalYAMLBase64Struct(t *testing.T) {
+	// var u yaml.Unmarshaler
+	u := Base64String("this\xffis\xffa\xfftest")
+
+	input := []byte(`value: dGhpc/9pc/9h/3Rlc3Q`)
+	want := struct{ Value Base64String }{u}
+	result := struct {
+		Value Base64String `yaml:"value"`
+	}{}
+	err := yaml.Unmarshal(input, &result)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(result.Value) != string(want.Value) {
+		t.Fatalf("yaml.Unmarshal(%v): wanted %q got %q", input, want, result)
+	}
+}
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/client.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/client.go
index e47be7fd..20f84283 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/client.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/client.go
@@ -80,7 +80,7 @@ func newFederationTripper() *federationTripper {
 					ServerName: "",
 					// TODO: We should be checking that the TLS certificate we see here matches
 					//       one of the allowed SHA-256 fingerprints for the server.
-					InsecureSkipVerify: true,
+					InsecureSkipVerify: true, // nolint: gas
 				})
 				if err := conn.Handshake(); err != nil {
 					return nil, err
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/event.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/event.go
index f873cb5b..71ec3b5f 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/event.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/event.go
@@ -22,6 +22,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
 	"golang.org/x/crypto/ed25519"
 )
@@ -306,6 +307,33 @@ func (e Event) SetUnsigned(unsigned interface{}) (Event, error) {
 	return result, nil
 }
 
+// SetUnsignedField takes a path and value to insert into the unsigned dict of
+// the event.
+// path is a dot separated path into the unsigned dict (see gjson package
+// for details on format). In particular some characters like '.' and '*' must
+// be escaped.
+func (e *Event) SetUnsignedField(path string, value interface{}) error {
+	// The safest way is to change the unsigned json and then reparse the
+	// event fully. But since we are only changing the unsigned section,
+	// which doesn't affect the signatures or hashes, we can cheat and
+	// just fiddle those bits directly.
+
+	path = "unsigned." + path
+	eventJSON, err := sjson.SetBytes(e.eventJSON, path, value)
+	if err != nil {
+		return err
+	}
+	eventJSON = CanonicalJSONAssumeValid(eventJSON)
+
+	res := gjson.GetBytes(eventJSON, "unsigned")
+	unsigned := rawJSONFromResult(res, eventJSON)
+
+	e.eventJSON = eventJSON
+	e.fields.Unsigned = unsigned
+
+	return nil
+}
+
 // EventReference returns an EventReference for the event.
 // The reference can be used to refer to this event from other events.
 func (e Event) EventReference() EventReference {
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/event_test.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/event_test.go
index d5c715da..cb5d4f84 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/event_test.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/event_test.go
@@ -50,3 +50,32 @@ func BenchmarkParseSmallerEventFailedHash(b *testing.B) {
 func BenchmarkParseSmallerEventRedacted(b *testing.B) {
 	benchmarkParse(b, `{"event_id":"$yvN1b43rlmcOs5fY:localhost","sender":"@test:localhost","room_id":"!19Mp0U9hjajeIiw1:localhost","hashes":{"sha256":"Oh1mwI1jEqZ3tgJ+V1Dmu5nOEGpCE4RFUqyJv2gQXKs"},"signatures":{"localhost":{"ed25519:u9kP":"5IzSuRXkxvbTp0vZhhXYZeOe+619iG3AybJXr7zfNn/4vHz4TH7qSJVQXSaHHvcTcDodAKHnTG1WDulgO5okAQ"}},"content":{},"type":"m.room.name","state_key":"","depth":7,"prev_events":[["$FqI6TVvWpcbcnJ97:localhost",{"sha256":"upCsBqUhNUgT2/+zkzg8TbqdQpWWKQnZpGJc6KcbUC4"}]],"prev_state":[],"auth_events":[["$oXL79cT7fFxR7dPH:localhost",{"sha256":"abjkiDSg1RkuZrbj2jZoGMlQaaj1Ue3Jhi7I7NlKfXY"}],["$IVUsaSkm1LBAZYYh:localhost",{"sha256":"X7RUj46hM/8sUHNBIFkStbOauPvbDzjSdH4NibYWnko"}],["$VS2QT0EeArZYi8wf:localhost",{"sha256":"k9eM6utkCH8vhLW9/oRsH74jOBS/6RVK42iGDFbylno"}]],"origin":"localhost","origin_server_ts":1510854416361}`)
 }
+
+func TestAddUnsignedField(t *testing.T) {
+	initialEventJSON := `{"auth_events":[["$oXL79cT7fFxR7dPH:localhost",{"sha256":"abjkiDSg1RkuZrbj2jZoGMlQaaj1Ue3Jhi7I7NlKfXY"}],["$IVUsaSkm1LBAZYYh:localhost",{"sha256":"X7RUj46hM/8sUHNBIFkStbOauPvbDzjSdH4NibYWnko"}],["$VS2QT0EeArZYi8wf:localhost",{"sha256":"k9eM6utkCH8vhLW9/oRsH74jOBS/6RVK42iGDFbylno"}]],"content":{"name":"test3"},"depth":7,"event_id":"$yvN1b43rlmcOs5fY:localhost","hashes":{"sha256":"Oh1mwI1jEqZ3tgJ+V1Dmu5nOEGpCE4RFUqyJv2gQXKs"},"origin":"localhost","origin_server_ts":1510854416361,"prev_events":[["$FqI6TVvWpcbcnJ97:localhost",{"sha256":"upCsBqUhNUgT2/+zkzg8TbqdQpWWKQnZpGJc6KcbUC4"}]],"prev_state":[],"room_id":"!19Mp0U9hjajeIiw1:localhost","sender":"@test:localhost","signatures":{"localhost":{"ed25519:u9kP":"5IzSuRXkxvbTp0vZhhXYZeOe+619iG3AybJXr7zfNn/4vHz4TH7qSJVQXSaHHvcTcDodAKHnTG1WDulgO5okAQ"}},"state_key":"","type":"m.room.name"}`
+	expectedEventJSON := `{"auth_events":[["$oXL79cT7fFxR7dPH:localhost",{"sha256":"abjkiDSg1RkuZrbj2jZoGMlQaaj1Ue3Jhi7I7NlKfXY"}],["$IVUsaSkm1LBAZYYh:localhost",{"sha256":"X7RUj46hM/8sUHNBIFkStbOauPvbDzjSdH4NibYWnko"}],["$VS2QT0EeArZYi8wf:localhost",{"sha256":"k9eM6utkCH8vhLW9/oRsH74jOBS/6RVK42iGDFbylno"}]],"content":{"name":"test3"},"depth":7,"event_id":"$yvN1b43rlmcOs5fY:localhost","hashes":{"sha256":"Oh1mwI1jEqZ3tgJ+V1Dmu5nOEGpCE4RFUqyJv2gQXKs"},"origin":"localhost","origin_server_ts":1510854416361,"prev_events":[["$FqI6TVvWpcbcnJ97:localhost",{"sha256":"upCsBqUhNUgT2/+zkzg8TbqdQpWWKQnZpGJc6KcbUC4"}]],"prev_state":[],"room_id":"!19Mp0U9hjajeIiw1:localhost","sender":"@test:localhost","signatures":{"localhost":{"ed25519:u9kP":"5IzSuRXkxvbTp0vZhhXYZeOe+619iG3AybJXr7zfNn/4vHz4TH7qSJVQXSaHHvcTcDodAKHnTG1WDulgO5okAQ"}},"state_key":"","type":"m.room.name","unsigned":{"foo":"bar","x":1}}`
+
+	var event Event
+	if err := json.Unmarshal([]byte(initialEventJSON), &event); err != nil {
+		t.Error("Failed to parse event")
+	}
+
+	err := event.SetUnsignedField("foo", "bar")
+	if err != nil {
+		t.Error("Failed to insert foo")
+	}
+
+	err = event.SetUnsignedField("x", 1)
+	if err != nil {
+		t.Error("Failed to insert x")
+	}
+
+	bytes, err := json.Marshal(event)
+	if err != nil {
+		t.Error("Failed to marshal x")
+	}
+
+	if expectedEventJSON != string(bytes) {
+		t.Fatalf("Serialized event does not match expected: %s != %s", string(bytes), initialEventJSON)
+	}
+}
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto.go
index 6b11ed44..7b56d9e0 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto.go
@@ -179,12 +179,21 @@ func verifyEventSignature(signingName string, keyID KeyID, publicKey ed25519.Pub
 
 // VerifyEventSignatures checks that each event in a list of events has valid
 // signatures from the server that sent it.
-func VerifyEventSignatures(ctx context.Context, events []Event, keyRing JSONVerifier) error { // nolint: gocyclo
-	var toVerify []VerifyJSONRequest
-	for _, event := range events {
+//
+// returns an array with either an error or nil for each event.
+func VerifyEventSignatures(ctx context.Context, events []Event, keyRing JSONVerifier) ([]error, error) { // nolint: gocyclo
+	// we will end up doing at least as many verifications as we have events.
+	// some events require multiple verifications, as they are signed by multiple
+	// servers.
+	toVerify := make([]VerifyJSONRequest, 0, len(events))
+
+	// for each entry in 'events', a list of corresponding indexes in toVerify
+	verificationMap := make([][]int, len(events))
+
+	for evtIdx, event := range events {
 		redactedJSON, err := redactEvent(event.eventJSON)
 		if err != nil {
-			return err
+			return nil, err
 		}
 
 		domains := make(map[ServerName]bool)
@@ -203,7 +212,7 @@ func VerifyEventSignatures(ctx context.Context, events []Event, keyRing JSONVeri
 		//
 		senderDomain, err := domainFromID(event.Sender())
 		if err != nil {
-			return err
+			return nil, err
 		}
 		domains[ServerName(senderDomain)] = true
 
@@ -212,12 +221,12 @@ func VerifyEventSignatures(ctx context.Context, events []Event, keyRing JSONVeri
 		if event.Type() == MRoomMember && event.StateKey() != nil {
 			targetDomain, err := domainFromID(*event.StateKey())
 			if err != nil {
-				return err
+				return nil, err
 			}
 			if ServerName(targetDomain) != event.Origin() {
 				c, err := newMemberContentFromEvent(event)
 				if err != nil {
-					return err
+					return nil, err
 				}
 				if c.Membership == invite {
 					domains[ServerName(targetDomain)] = true
@@ -231,22 +240,45 @@ func VerifyEventSignatures(ctx context.Context, events []Event, keyRing JSONVeri
 				AtTS:       event.OriginServerTS(),
 				ServerName: domain,
 			}
+			verificationMap[evtIdx] = append(verificationMap[evtIdx], len(toVerify))
 			toVerify = append(toVerify, v)
 		}
 	}
 
 	results, err := keyRing.VerifyJSONs(ctx, toVerify)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
-	// Check that all the event JSON was correctly signed.
-	for _, result := range results {
-		if result.Error != nil {
-			return result.Error
+	// Check that all the event JSON was correctly signed
+	verificationErrors := make([]error, len(events))
+	for evtIdx := range events {
+		for _, verificationIdx := range verificationMap[evtIdx] {
+			result := results[verificationIdx]
+			if result.Error != nil {
+				verificationErrors[evtIdx] = result.Error
+				break // break inner loop; continue with outer
+			}
 		}
 	}
 
-	// Everything was okay.
+	return verificationErrors, nil
+}
+
+// VerifyAllEventSignatures checks that each event in a list of events has valid
+// signatures from the server that sent it.
+//
+// returns an error if any event fails verifications
+func VerifyAllEventSignatures(ctx context.Context, events []Event, keyRing JSONVerifier) error {
+	verificationErrors, err := VerifyEventSignatures(ctx, events, keyRing)
+	if err != nil {
+		return err
+	}
+	for idx := range events {
+		ve := verificationErrors[idx]
+		if ve != nil {
+			return ve
+		}
+	}
 	return nil
 }
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto_test.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto_test.go
index 72d86881..34595004 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto_test.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/eventcrypto_test.go
@@ -272,8 +272,10 @@ func (v *StubVerifier) VerifyJSONs(ctx context.Context, requests []VerifyJSONReq
 	return v.results, nil
 }
 
-func TestVerifyEventSignatures(t *testing.T) {
-	verifier := StubVerifier{}
+func TestVerifyAllEventSignatures(t *testing.T) {
+	verifier := StubVerifier{
+		results: make([]VerifyJSONResult, 2),
+	}
 
 	eventJSON := []byte(`{
 		"type": "m.room.name",
@@ -295,7 +297,7 @@ func TestVerifyEventSignatures(t *testing.T) {
 	event.eventJSON = eventJSON
 
 	events := []Event{event}
-	if err := VerifyEventSignatures(context.Background(), events, &verifier); err != nil {
+	if err := VerifyAllEventSignatures(context.Background(), events, &verifier); err != nil {
 		t.Fatal(err)
 	}
 
@@ -329,8 +331,10 @@ func TestVerifyEventSignatures(t *testing.T) {
 	}
 }
 
-func TestVerifyEventSignaturesForInvite(t *testing.T) {
-	verifier := StubVerifier{}
+func TestVerifyAllEventSignaturesForInvite(t *testing.T) {
+	verifier := StubVerifier{
+		results: make([]VerifyJSONResult, 2),
+	}
 
 	eventJSON := []byte(`{
 		"type": "m.room.member",
@@ -352,7 +356,7 @@ func TestVerifyEventSignaturesForInvite(t *testing.T) {
 	event.eventJSON = eventJSON
 
 	events := []Event{event}
-	if err := VerifyEventSignatures(context.Background(), events, &verifier); err != nil {
+	if err := VerifyAllEventSignatures(context.Background(), events, &verifier); err != nil {
 		t.Fatal(err)
 	}
 
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/federationclient.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/federationclient.go
index 299f0841..bcc68b2e 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/federationclient.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/federationclient.go
@@ -2,7 +2,6 @@ package gomatrixserverlib
 
 import (
 	"context"
-	"net/http"
 	"net/url"
 
 	"golang.org/x/crypto/ed25519"
@@ -22,7 +21,7 @@ func NewFederationClient(
 	serverName ServerName, keyID KeyID, privateKey ed25519.PrivateKey,
 ) *FederationClient {
 	return &FederationClient{
-		Client:           Client{client: http.Client{Transport: newFederationTripper()}},
+		Client:           *NewClient(),
 		serverName:       serverName,
 		serverKeyID:      keyID,
 		serverPrivateKey: privateKey,
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/federationtypes.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/federationtypes.go
index ac734ed0..2fd2f53b 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/federationtypes.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/federationtypes.go
@@ -138,7 +138,7 @@ func (r RespState) Check(ctx context.Context, keyRing JSONVerifier) error {
 
 	// Check if the events pass signature checks.
 	logger.Infof("Checking event signatures for %d events of room state", len(allEvents))
-	if err := VerifyEventSignatures(ctx, allEvents, keyRing); err != nil {
+	if err := VerifyAllEventSignatures(ctx, allEvents, keyRing); err != nil {
 		return err
 	}
 
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/keys.go b/vendor/src/github.com/matrix-org/gomatrixserverlib/keys.go
index 98ff87fd..fab72b3d 100644
--- a/vendor/src/github.com/matrix-org/gomatrixserverlib/keys.go
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/keys.go
@@ -110,8 +110,10 @@ func FetchKeysDirect(serverName ServerName, addr, sni string) (*ServerKeys, *tls
 	}
 	defer tcpconn.Close() // nolint: errcheck
 	tlsconn := tls.Client(tcpconn, &tls.Config{
-		ServerName:         sni,
-		InsecureSkipVerify: true, // This must be specified even though the TLS library will ignore it.
+		ServerName: sni,
+
+		// This must be specified even though the TLS library will ignore it.
+		InsecureSkipVerify: true, // nolint: gas
 	})
 	if err = tlsconn.Handshake(); err != nil {
 		return nil, nil, err
diff --git a/vendor/src/github.com/matrix-org/gomatrixserverlib/travis.sh b/vendor/src/github.com/matrix-org/gomatrixserverlib/travis.sh
new file mode 100644
index 00000000..3ba23b61
--- /dev/null
+++ b/vendor/src/github.com/matrix-org/gomatrixserverlib/travis.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+set -eux
+
+cd `dirname $0`
+
+# -u so that if this is run on a dev box, we get the latest deps, as
+# we do on travis.
+
+go get -u \
+   github.com/alecthomas/gometalinter \
+   golang.org/x/crypto/ed25519 \
+   github.com/matrix-org/util \
+   github.com/matrix-org/gomatrix \
+   github.com/tidwall/gjson \
+   github.com/tidwall/sjson \
+   github.com/pkg/errors \
+   gopkg.in/yaml.v2 \
+   
+./hooks/pre-commit