diff --git a/client_test.go b/client_test.go
index a8e6d92..c7608f2 100644
--- a/client_test.go
+++ b/client_test.go
@@ -11,12 +11,12 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/interop/grpc_testing"
 	"google.golang.org/grpc/metadata"
-	"google.golang.org/grpc/test/grpc_testing"
 )
 
 func Test_PomeriumAuthCredentials(t *testing.T) {
-	var token = "mysecuretesttoken"
+	token := "mysecuretesttoken"
 
 	creds := NewPomeriumAuthCredentials(token)
 	meta, err := creds.GetRequestMetadata(context.Background(), "/something")
@@ -27,7 +27,7 @@ func Test_PomeriumAuthCredentials(t *testing.T) {
 }
 
 func Test_dial(t *testing.T) {
-	var token = "mysecuretesttoken"
+	token := "mysecuretesttoken"
 
 	srv := grpc.NewServer()
 	h := httptest.NewUnstartedServer(srv)
diff --git a/go.mod b/go.mod
index cddb95c..3fbb09f 100644
--- a/go.mod
+++ b/go.mod
@@ -7,14 +7,14 @@ require (
 	github.com/envoyproxy/protoc-gen-validate v1.0.1
 	github.com/pomerium/pomerium v0.22.2
 	github.com/stretchr/testify v1.8.4
-	google.golang.org/grpc v1.54.0
+	google.golang.org/grpc v1.55.0
 	google.golang.org/protobuf v1.30.0
 )
 
 require (
 	github.com/caddyserver/certmagic v0.17.2 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.0 // indirect
-	github.com/cncf/xds/go v0.0.0-20230105202645-06c439db220b // indirect
+	github.com/cncf/xds/go v0.0.0-20230310173818-32f1caf87195 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.0 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
diff --git a/go.sum b/go.sum
index ad7755e..74ddbce 100644
--- a/go.sum
+++ b/go.sum
@@ -16,8 +16,8 @@ github.com/cenkalti/backoff/v4 v4.2.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyY
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/xds/go v0.0.0-20230105202645-06c439db220b h1:ACGZRIr7HsgBKHsueQ1yM4WaVaXh21ynwqsF8M8tXhA=
-github.com/cncf/xds/go v0.0.0-20230105202645-06c439db220b/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
+github.com/cncf/xds/go v0.0.0-20230310173818-32f1caf87195 h1:58f1tJ1ra+zFINPlwLWvQsR9CzAKt2e+EWV2yX9oXQ4=
+github.com/cncf/xds/go v0.0.0-20230310173818-32f1caf87195/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
@@ -215,8 +215,8 @@ google.golang.org/genproto v0.0.0-20230403163135-c38d8f061ccd/go.mod h1:UUQDJDOl
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
-google.golang.org/grpc v1.54.0 h1:EhTqbhiYeixwWQtAEZAxmV9MGqcjEU2mFx52xCzNyag=
-google.golang.org/grpc v1.54.0/go.mod h1:PUSEXI6iWghWaB6lXM4knEgpJNu2qUcKfDtNci3EC2g=
+google.golang.org/grpc v1.55.0 h1:3Oj82/tFSCeUrRTg/5E/7d/W5A1tj6Ky1ABAuZuv5ag=
+google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=