diff --git a/go.mod b/go.mod
index c5fe8869..b0194fea 100644
--- a/go.mod
+++ b/go.mod
@@ -22,7 +22,7 @@ require (
 	github.com/powerman/check v1.7.0
 	github.com/quic-go/quic-go v0.37.1
 	golang.org/x/crypto v0.11.0
-	golang.org/x/net v0.12.0
+	golang.org/x/net v0.13.0
 	golang.org/x/sys v0.10.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
diff --git a/go.sum b/go.sum
index e35debea..6976aadd 100644
--- a/go.sum
+++ b/go.sum
@@ -95,8 +95,8 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50=
-golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
+golang.org/x/net v0.13.0 h1:Nvo8UFsZ8X3BhAC9699Z1j7XQ3rsZnUUm7jfBEk1ueY=
+golang.org/x/net v0.13.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go
index b9632380..b20c7491 100644
--- a/vendor/golang.org/x/net/http2/transport.go
+++ b/vendor/golang.org/x/net/http2/transport.go
@@ -518,11 +518,14 @@ func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
 func authorityAddr(scheme string, authority string) (addr string) {
 	host, port, err := net.SplitHostPort(authority)
 	if err != nil { // authority didn't have a port
+		host = authority
+		port = ""
+	}
+	if port == "" { // authority's port was empty
 		port = "443"
 		if scheme == "http" {
 			port = "80"
 		}
-		host = authority
 	}
 	if a, err := idna.ToASCII(host); err == nil {
 		host = a
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 885eabfd..c2630f2c 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -157,7 +157,7 @@ golang.org/x/mod/internal/lazyregexp
 golang.org/x/mod/modfile
 golang.org/x/mod/module
 golang.org/x/mod/semver
-# golang.org/x/net v0.12.0
+# golang.org/x/net v0.13.0
 ## explicit; go 1.17
 golang.org/x/net/bpf
 golang.org/x/net/http/httpguts