diff --git a/packages/backend-test-utils/package.json b/packages/backend-test-utils/package.json
index 725be0d905..385d79fca3 100644
--- a/packages/backend-test-utils/package.json
+++ b/packages/backend-test-utils/package.json
@@ -39,10 +39,10 @@
     "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/cli": "workspace:^",
     "@backstage/config": "workspace:^",
+    "@backstage/plugin-auth-node": "workspace:^",
     "@backstage/types": "workspace:^",
     "better-sqlite3": "^8.0.0",
     "express": "^4.17.1",
-    "express-promise-router": "^4.1.0",
     "knex": "^2.0.0",
     "msw": "^0.49.0",
     "mysql2": "^2.2.5",
diff --git a/packages/backend-test-utils/src/next/implementations/mockIdentityService.ts b/packages/backend-test-utils/src/next/implementations/mockIdentityService.ts
new file mode 100644
index 0000000000..30a464d877
--- /dev/null
+++ b/packages/backend-test-utils/src/next/implementations/mockIdentityService.ts
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2023 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import {
+  coreServices,
+  createServiceFactory,
+  IdentityService,
+} from '@backstage/backend-plugin-api';
+import {
+  IdentityApiGetIdentityRequest,
+  BackstageIdentityResponse,
+} from '@backstage/plugin-auth-node';
+
+class MockIdentityServiceImpl implements IdentityService {
+  getIdentity(
+    _options: IdentityApiGetIdentityRequest,
+  ): Promise<BackstageIdentityResponse | undefined> {
+    return Promise.resolve({
+      token: 'mock-token',
+      identity: {
+        type: 'user',
+        userEntityRef: 'user:default/mock-user',
+        ownershipEntityRefs: [],
+      },
+    });
+  }
+}
+
+export const mockIdentityFactory = createServiceFactory({
+  service: coreServices.identity,
+  deps: {},
+  async factory() {
+    const service = new MockIdentityServiceImpl();
+    return async () => {
+      return service;
+    };
+  },
+});
diff --git a/packages/backend-test-utils/src/next/wiring/TestBackend.ts b/packages/backend-test-utils/src/next/wiring/TestBackend.ts
index 31bb7f025d..78c2f78e5e 100644
--- a/packages/backend-test-utils/src/next/wiring/TestBackend.ts
+++ b/packages/backend-test-utils/src/next/wiring/TestBackend.ts
@@ -46,6 +46,7 @@ import { mockRootLoggerService } from '../implementations/mockRootLoggerService'
 import { mockTokenManagerFactory } from '../implementations/mockTokenManagerService';
 import { ConfigReader } from '@backstage/config';
 import express from 'express';
+import { mockIdentityFactory } from '../implementations/mockIdentityService';
 
 /** @alpha */
 export interface TestBackendOptions<
@@ -90,6 +91,7 @@ const defaultServiceFactories = [
   loggerFactory(),
   mockConfigFactory(),
   mockRootLoggerService(),
+  mockIdentityFactory(),
   mockTokenManagerFactory(),
   permissionsFactory(),
   rootLifecycleFactory(),
diff --git a/yarn.lock b/yarn.lock
index d6822cad9d..e8f1a31b99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3567,11 +3567,11 @@ __metadata:
     "@backstage/backend-plugin-api": "workspace:^"
     "@backstage/cli": "workspace:^"
     "@backstage/config": "workspace:^"
+    "@backstage/plugin-auth-node": "workspace:^"
     "@backstage/types": "workspace:^"
     "@types/supertest": ^2.0.8
     better-sqlite3: ^8.0.0
     express: ^4.17.1
-    express-promise-router: ^4.1.0
     knex: ^2.0.0
     msw: ^0.49.0
     mysql2: ^2.2.5