diff --git a/agent/config_endpoint_test.go b/agent/config_endpoint_test.go
index 8697b55e5bf0e..fac710f3fe3aa 100644
--- a/agent/config_endpoint_test.go
+++ b/agent/config_endpoint_test.go
@@ -612,7 +612,7 @@ func TestConfig_Apply_CAS(t *testing.T) {
 	{
 		"Kind": "service-defaults",
 		"Name": "foo",
-		"Protocol": "udp"
+		"Protocol": "tcp"
 	}
 	`))
 	req, _ = http.NewRequest("PUT", "/v1/config?cas=0", body)
@@ -628,7 +628,7 @@ func TestConfig_Apply_CAS(t *testing.T) {
 	{
 		"Kind": "service-defaults",
 		"Name": "foo",
-		"Protocol": "udp"
+		"Protocol": "tcp"
 	}
 	`))
 	req, _ = http.NewRequest("PUT", fmt.Sprintf("/v1/config?cas=%d", entry.GetRaftIndex().ModifyIndex), body)
diff --git a/agent/consul/config_replication_test.go b/agent/consul/config_replication_test.go
index e2c4fbee8d8a1..3117e046a4635 100644
--- a/agent/consul/config_replication_test.go
+++ b/agent/consul/config_replication_test.go
@@ -6,11 +6,11 @@ package consul
 import (
 	"context"
 	"fmt"
-	"github.com/oklog/ulid/v2"
-	"github.com/stretchr/testify/assert"
 	"os"
 	"testing"
 
+	"github.com/oklog/ulid/v2"
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	"github.com/hashicorp/consul/agent/structs"
@@ -129,7 +129,7 @@ func TestReplication_ConfigEntries(t *testing.T) {
 			Entry: &structs.ServiceConfigEntry{
 				Kind:     structs.ServiceDefaults,
 				Name:     fmt.Sprintf("svc-%d", i),
-				Protocol: "udp",
+				Protocol: "tcp",
 			},
 		}
 
diff --git a/command/config/write/config_write_test.go b/command/config/write/config_write_test.go
index c0bca3096936a..ae782c0826312 100644
--- a/command/config/write/config_write_test.go
+++ b/command/config/write/config_write_test.go
@@ -43,7 +43,7 @@ func TestConfigWrite(t *testing.T) {
 		_, err := f.WriteString(`
       Kind = "service-defaults"
       Name = "web"
-      Protocol = "udp"
+      Protocol = "tcp"
       `)
 
 		require.NoError(t, err)
@@ -65,7 +65,7 @@ func TestConfigWrite(t *testing.T) {
 		require.True(t, ok)
 		require.Equal(t, api.ServiceDefaults, svc.Kind)
 		require.Equal(t, "web", svc.Name)
-		require.Equal(t, "udp", svc.Protocol)
+		require.Equal(t, "tcp", svc.Protocol)
 	})
 
 	t.Run("Stdin", func(t *testing.T) {