diff --git a/packages/cli/src/lib/new/createNewPackage.ts b/packages/cli/src/lib/new/createNewPackage.ts
index c68e69c6de..ddf41f1026 100644
--- a/packages/cli/src/lib/new/createNewPackage.ts
+++ b/packages/cli/src/lib/new/createNewPackage.ts
@@ -21,6 +21,7 @@ import {
   selectTemplateInteractively,
 } from './preparation';
 import { executePortableTemplate } from './execution';
+import { PortableTemplateParams } from './types';
 
 export type CreateNewPackageOptions = {
   preselectedTemplateId?: string;
@@ -31,7 +32,7 @@ export type CreateNewPackageOptions = {
     license?: string;
     baseVersion?: string;
   };
-  prefilledParams: Record<string, string>;
+  prefilledParams: PortableTemplateParams;
 };
 
 export async function createNewPackage(options: CreateNewPackageOptions) {
diff --git a/packages/cli/src/lib/new/execution/executePortableTemplate.ts b/packages/cli/src/lib/new/execution/executePortableTemplate.ts
index a5baaed6ff..3d641efa97 100644
--- a/packages/cli/src/lib/new/execution/executePortableTemplate.ts
+++ b/packages/cli/src/lib/new/execution/executePortableTemplate.ts
@@ -27,13 +27,13 @@ import { createDirName, resolvePackageName } from './utils';
 import { runAdditionalActions } from './additionalActions';
 import { executePluginPackageTemplate } from './executePluginPackageTemplate';
 import { TemporaryDirectoryManager } from './TemporaryDirectoryManager';
-import { PortableTemplateConfig } from '../types';
+import { PortableTemplateConfig, PortableTemplateParams } from '../types';
 import { PortableTemplate } from '../types';
 
 type ExecuteNewTemplateOptions = {
   config: PortableTemplateConfig;
   template: PortableTemplate;
-  params: Record<string, string | number | boolean>;
+  params: PortableTemplateParams;
 };
 
 export async function executePortableTemplate(
diff --git a/packages/cli/src/lib/new/preparation/collectPortableTemplateParams.ts b/packages/cli/src/lib/new/preparation/collectPortableTemplateParams.ts
index 865266f8ec..315bd2ad24 100644
--- a/packages/cli/src/lib/new/preparation/collectPortableTemplateParams.ts
+++ b/packages/cli/src/lib/new/preparation/collectPortableTemplateParams.ts
@@ -19,6 +19,7 @@ import { getCodeownersFilePath, parseOwnerIds } from '../../codeowners';
 import { paths } from '../../paths';
 import {
   PortableTemplateConfig,
+  PortableTemplateParams,
   PortableTemplatePrompt,
   PortableTemplateRole,
 } from '../types';
@@ -27,12 +28,12 @@ import { PortableTemplate } from '../types';
 type CollectTemplateParamsOptions = {
   config: PortableTemplateConfig;
   template: PortableTemplate;
-  prefilledParams: Record<string, string | number | boolean>;
+  prefilledParams: PortableTemplateParams;
 };
 
 export async function collectPortableTemplateParams(
   options: CollectTemplateParamsOptions,
-): Promise<Record<string, string | number | boolean>> {
+): Promise<PortableTemplateParams> {
   const { config, template, prefilledParams } = options;
 
   const codeOwnersFilePath = await getCodeownersFilePath(paths.targetRoot);
@@ -47,7 +48,7 @@ export async function collectPortableTemplateParams(
   }
 
   const needsAnswer = [];
-  const prefilledAnswers = {} as Record<string, string | number | boolean>;
+  const prefilledAnswers = {} as PortableTemplateParams;
   for (const prompt of prompts) {
     if (prompt.name && prefilledParams[prompt.name] !== undefined) {
       prefilledAnswers[prompt.name] = prefilledParams[prompt.name];
@@ -56,9 +57,9 @@ export async function collectPortableTemplateParams(
     }
   }
 
-  const promptAnswers = await inquirer.prompt<
-    Record<string, string | number | boolean>
-  >(needsAnswer);
+  const promptAnswers = await inquirer.prompt<PortableTemplateParams>(
+    needsAnswer,
+  );
 
   return {
     ...config.globals,
diff --git a/packages/cli/src/lib/new/preparation/loadPortableTemplateConfig.ts b/packages/cli/src/lib/new/preparation/loadPortableTemplateConfig.ts
index 853f33c1f4..68a19a09bc 100644
--- a/packages/cli/src/lib/new/preparation/loadPortableTemplateConfig.ts
+++ b/packages/cli/src/lib/new/preparation/loadPortableTemplateConfig.ts
@@ -17,7 +17,7 @@
 import fs from 'fs-extra';
 import { paths } from '../../paths';
 import { defaultTemplates } from '../defaultTemplates';
-import { PortableTemplateConfig } from '../types';
+import { PortableTemplateConfig, PortableTemplateParams } from '../types';
 import { z } from 'zod';
 import { fromZodError } from 'zod-validation-error';
 import { ForwardedError } from '@backstage/errors';
@@ -55,7 +55,7 @@ const pkgJsonWithNewConfigSchema = z.object({
 
 type LoadConfigOptions = {
   packagePath?: string;
-  globalOverrides?: Record<string, string | number | boolean>;
+  globalOverrides?: PortableTemplateParams;
 };
 
 export async function loadPortableTemplateConfig(
diff --git a/packages/cli/src/lib/new/types.ts b/packages/cli/src/lib/new/types.ts
index 2200df5ccb..1b1e814006 100644
--- a/packages/cli/src/lib/new/types.ts
+++ b/packages/cli/src/lib/new/types.ts
@@ -60,7 +60,7 @@ export const TEMPLATE_ROLES = [
 
 export type PortableTemplateRole = (typeof TEMPLATE_ROLES)[number];
 
-export interface PortableTemplate {
+export type PortableTemplate = {
   id: string;
   description?: string;
   templatePath: string;
@@ -68,4 +68,8 @@ export interface PortableTemplate {
   role: PortableTemplateRole;
   prompts?: PortableTemplatePrompt[];
   additionalActions?: string[];
-}
+};
+
+export type PortableTemplateParams = {
+  [KName in string]?: string | number | boolean;
+};