diff --git a/clientapi/routing/joinroom.go b/clientapi/routing/joinroom.go
index af8e3e9a3..9b2bdcc53 100644
--- a/clientapi/routing/joinroom.go
+++ b/clientapi/routing/joinroom.go
@@ -293,6 +293,7 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
 	for i := range version.GetSupportedRoomVersions() {
 		roomVersions = append(roomVersions, int(i))
 	}
+	fmt.Println("Supported versions:", roomVersions)
 	respMakeJoin, err := r.federation.MakeJoin(r.req.Context(), server, roomID, r.userID, roomVersions)
 	if err != nil {
 		// TODO: Check if the user was not allowed to join the room.
diff --git a/go.mod b/go.mod
index cdbf1148a..f3956e01c 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ require (
 	github.com/lib/pq v1.2.0
 	github.com/matrix-org/dugong v0.0.0-20171220115018-ea0a4690a0d5
 	github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26
-	github.com/matrix-org/gomatrixserverlib v0.0.0-20200220133731-65bb85dd5c75
+	github.com/matrix-org/gomatrixserverlib v0.0.0-20200220134925-9e89fac5cdce
 	github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1
 	github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5
 	github.com/mattn/go-sqlite3 v2.0.2+incompatible
diff --git a/go.sum b/go.sum
index 044e0ecd9..99e97447d 100644
--- a/go.sum
+++ b/go.sum
@@ -75,6 +75,8 @@ github.com/matrix-org/gomatrixserverlib v0.0.0-20200220111558-3d684b2c03ab h1:OS
 github.com/matrix-org/gomatrixserverlib v0.0.0-20200220111558-3d684b2c03ab/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
 github.com/matrix-org/gomatrixserverlib v0.0.0-20200220133731-65bb85dd5c75 h1:76ZTEwVfUqvFE9wWRbR37hj2CLVjDD/+VGuH1NEGsz8=
 github.com/matrix-org/gomatrixserverlib v0.0.0-20200220133731-65bb85dd5c75/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20200220134925-9e89fac5cdce h1:6NYsR6VFOcKsi0HDeiVfmNPqbJ5KcDTB8YVgltzHunc=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20200220134925-9e89fac5cdce/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
 github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1 h1:osLoFdOy+ChQqVUn2PeTDETFftVkl4w9t/OW18g3lnk=
 github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1/go.mod h1:cXoYQIENbdWIQHt1SyCo6Bl3C3raHwJ0wgVrXHSqf+A=
 github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5 h1:W7l5CP4V7wPyPb4tYE11dbmeAOwtFQBTW0rf4OonOS8=