diff --git a/packages/cli/config/jest.js b/packages/cli/config/jest.js
index e10f2d1ce1..3c015dd7c7 100644
--- a/packages/cli/config/jest.js
+++ b/packages/cli/config/jest.js
@@ -134,7 +134,7 @@ async function getProjectConfig(targetPath, displayName) {
       '\\.(js|jsx|ts|tsx|mjs|cjs)$': [
         '@swc/jest',
         {
-          enableSourceMaps: envOptions.enableSourceMaps || envOptions.nextTests,
+          sourceMaps: false, // envOptions.enableSourceMaps || envOptions.nextTests,
         },
       ],
       // '^.+\\.(t|j)sx?$': '@swc/jest',
diff --git a/plugins/scaffolder-backend-module-cookiecutter/src/actions/fetch/cookiecutter.test.ts b/plugins/scaffolder-backend-module-cookiecutter/src/actions/fetch/cookiecutter.test.ts
index 8c501cf8f1..d8c9e06612 100644
--- a/plugins/scaffolder-backend-module-cookiecutter/src/actions/fetch/cookiecutter.test.ts
+++ b/plugins/scaffolder-backend-module-cookiecutter/src/actions/fetch/cookiecutter.test.ts
@@ -17,12 +17,12 @@ const executeShellCommand = jest.fn();
 const commandExists = jest.fn();
 const fetchContents = jest.fn();
 
-jest.mock('@backstage/plugin-scaffolder-backend', () => ({
-  ...jest.requireActual('@backstage/plugin-scaffolder-backend'),
+jest.doMock('@backstage/plugin-scaffolder-backend', () => ({
+  ...require('@backstage/plugin-scaffolder-backend'),
   fetchContents,
   executeShellCommand,
 }));
-jest.mock('command-exists', () => commandExists);
+jest.doMock('command-exists', () => commandExists);
 
 import {
   getVoidLogger,
diff --git a/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.test.ts b/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.test.ts
index 0767e63f29..0e0e5891a3 100644
--- a/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.test.ts
+++ b/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.test.ts
@@ -17,15 +17,14 @@
 const executeShellCommand = jest.fn();
 const commandExists = jest.fn();
 
-jest.mock('@backstage/plugin-scaffolder-backend', () => ({
+jest.doMock('@backstage/plugin-scaffolder-backend', () => ({
   executeShellCommand,
 }));
-jest.mock('command-exists', () => commandExists);
-jest.mock('fs-extra');
+jest.doMock('command-exists', () => commandExists);
 
 import { ContainerRunner } from '@backstage/backend-common';
 import fs from 'fs-extra';
-
+import mockfs from 'mock-fs';
 import path from 'path';
 import { PassThrough } from 'stream';
 
diff --git a/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.ts b/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.ts
index 0ed02e293c..caebc36779 100644
--- a/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.ts
+++ b/plugins/scaffolder-backend-module-rails/src/actions/fetch/rails/railsNewRunner.ts
@@ -57,7 +57,6 @@ export class RailsNewRunner {
     const baseCommand = 'rails';
     const baseArguments = ['new'];
     const commandExistsToRun = await commandExists(baseCommand);
-
     if (commandExistsToRun) {
       const arrayExtraArguments = railsArgumentResolver(
         workspacePath,
diff --git a/plugins/scaffolder-backend/src/service/router.test.ts b/plugins/scaffolder-backend/src/service/router.test.ts
index 7ddec46078..4079fd0114 100644
--- a/plugins/scaffolder-backend/src/service/router.test.ts
+++ b/plugins/scaffolder-backend/src/service/router.test.ts
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-const mockAccess = jest.fn();
-
 import {
   DatabaseManager,
   getVoidLogger,
@@ -43,7 +41,9 @@ import {
 import { createRouter, DatabaseTaskStore, TaskBroker } from '../index';
 import { StorageTaskBroker } from '../scaffolder/tasks/StorageTaskBroker';
 
-jest.mock('fs-extra', () => ({
+const mockAccess = jest.fn();
+
+jest.doMock('fs-extra', () => ({
   access: mockAccess,
   promises: {
     access: mockAccess,