diff --git a/go.mod b/go.mod
index 6f8c9bdf6c9668b3b84cf8c07931c9858610bd0f..68fae0d4044c92939c43edf474974adc10f9572a 100644
--- a/go.mod
+++ b/go.mod
@@ -57,7 +57,7 @@ require (
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
 	golang.org/x/tools v0.1.7 // indirect
 	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa
-	google.golang.org/grpc v1.42.0
+	google.golang.org/grpc v1.43.0
 	google.golang.org/protobuf v1.27.1
 	gopkg.in/ini.v1 v1.66.2
 )
diff --git a/go.sum b/go.sum
index 4e2dc62966eb75ad0176ec8325c45bbfeca41fc6..51276621c723d7cf3649191649ab886cd86bf94a 100644
--- a/go.sum
+++ b/go.sum
@@ -2232,8 +2232,9 @@ google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnD
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzIUK6k=
-google.golang.org/grpc v1.42.0 h1:XT2/MFpuPFsEX2fWh3YQtHkZ+WYZFQRfaUgLZYj/p6A=
 google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
+google.golang.org/grpc v1.43.0 h1:Eeu7bZtDZ2DpRCsLhUlcrLnvYaMK1Gz86a+hMVvELmM=
+google.golang.org/grpc v1.43.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
diff --git a/pkg/api/api.go b/pkg/api/api.go
index 4132a53958536564140f5c443dc14e427b2ddcb5..10a548581a43f27d4da4bd814aaa9bdffa7260c0 100644
--- a/pkg/api/api.go
+++ b/pkg/api/api.go
@@ -29,6 +29,7 @@ import (
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/sigstore/rekor/pkg/log"
 	pki "github.com/sigstore/rekor/pkg/pki/x509"
@@ -44,7 +45,8 @@ func dial(ctx context.Context, rpcServer string) (*grpc.ClientConn, error) {
 	defer cancel()
 
 	// Set up and test connection to rpc server
-	conn, err := grpc.DialContext(ctx, rpcServer, grpc.WithInsecure())
+	creds := insecure.NewCredentials()
+	conn, err := grpc.DialContext(ctx, rpcServer, grpc.WithTransportCredentials(creds))
 	if err != nil {
 		log.Logger.Fatalf("Failed to connect to RPC server:", err)
 	}