diff --git a/packages/wmr/src/cli.js b/packages/wmr/src/cli.js
index aa45b90c..3c6669dc 100644
--- a/packages/wmr/src/cli.js
+++ b/packages/wmr/src/cli.js
@@ -35,6 +35,7 @@ prog
 	.option('--visualize', 'Launch interactive bundle visualizer')
 	.option('--minify', 'Enable minification of generated code (default: true)', true)
 	.option('--autoInstall', 'Fetch missing npm packages from npm registry automatically (default: false')
+	.option('--registry', 'NPM registry url to fetch if "--autoInstall" is set (default: https://registry.npmjs.org)')
 	.action(opts => {
 		opts.minify = bool(opts.minify);
 		run(build(opts));
@@ -62,6 +63,7 @@ prog
 	.option('--profile', 'Generate build statistics')
 	.option('--reload', 'Switch off hmr and reload on file saves')
 	.option('--autoInstall', 'Fetch missing npm packages from npm registry automatically (default: false')
+	.option('--registry', 'NPM registry url to fetch if "--autoInstall" is set (default: https://registry.npmjs.org)')
 	.action(opts => {
 		opts.optimize = !/false|0/.test(opts.compress);
 		opts.compress = bool(opts.compress);
diff --git a/packages/wmr/src/lib/normalize-options.js b/packages/wmr/src/lib/normalize-options.js
index bbbe464e..65657abf 100644
--- a/packages/wmr/src/lib/normalize-options.js
+++ b/packages/wmr/src/lib/normalize-options.js
@@ -25,6 +25,7 @@ export async function normalizeOptions(options, mode, configWatchFiles = []) {
 	options.features = { preact: true };
 	options.alias = options.alias || options.aliases || {};
 	options.customRoutes = options.customRoutes || [];
+	options.registry = options.registry || 'https://registry.npmjs.org';
 
 	// `wmr` / `wmr start` is a development command.
 	// `wmr build` / `wmr serve` are production commands.
diff --git a/packages/wmr/src/lib/plugins.js b/packages/wmr/src/lib/plugins.js
index 0a8153db..c904da2e 100644
--- a/packages/wmr/src/lib/plugins.js
+++ b/packages/wmr/src/lib/plugins.js
@@ -46,7 +46,8 @@ export function getPlugins(options) {
 		sourcemap,
 		features,
 		visualize,
-		autoInstall
+		autoInstall,
+		registry
 	} = options;
 
 	// Plugins are pre-sorted
@@ -99,7 +100,7 @@ export function getPlugins(options) {
 			// Only transpile CommonJS in node_modules and explicit .cjs files:
 			include: /(^npm\/|[/\\]node_modules[/\\]|\.cjs$)/
 		}),
-		npmPlugin({ cwd, autoInstall, production }),
+		npmPlugin({ cwd, autoInstall, production, registryUrl: registry }),
 		resolveExtensionsPlugin({
 			extensions: ['.ts', '.tsx', '.js', '.cjs'],
 			index: true
diff --git a/packages/wmr/src/plugins/npm-plugin/index.js b/packages/wmr/src/plugins/npm-plugin/index.js
index 20b687d6..36b5d897 100644
--- a/packages/wmr/src/plugins/npm-plugin/index.js
+++ b/packages/wmr/src/plugins/npm-plugin/index.js
@@ -13,9 +13,10 @@ const log = debug('npm', 196);
  * @param {string} options.cwd
  * @param {boolean} options.autoInstall
  * @param {boolean} options.production
+ * @param {string} options.registryUrl
  * @returns {import('rollup').Plugin}
  */
-export function npmPlugin({ cwd, autoInstall, production }) {
+export function npmPlugin({ cwd, autoInstall, production, registryUrl }) {
 	const PREFIX = '\0npm:';
 
 	const cacheDir = path.join(cwd, '.cache', '@npm');
@@ -52,7 +53,7 @@ export function npmPlugin({ cwd, autoInstall, production }) {
 		}
 
 		log(kl.dim(`bundle: `) + kl.cyan(id));
-		let result = await npmBundle(id, { autoInstall, production, cacheDir, cwd, resolutionCache });
+		let result = await npmBundle(id, { autoInstall, production, cacheDir, cwd, resolutionCache, registryUrl });
 
 		await Promise.all(
 			result.output.map(async chunkOrAsset => {
diff --git a/packages/wmr/src/plugins/npm-plugin/npm-auto-install.js b/packages/wmr/src/plugins/npm-plugin/npm-auto-install.js
index 15dd4dd5..725f6095 100644
--- a/packages/wmr/src/plugins/npm-plugin/npm-auto-install.js
+++ b/packages/wmr/src/plugins/npm-plugin/npm-auto-install.js
@@ -96,12 +96,10 @@ async function parseTarball(bodyStream, onFile, { include, exclude }) {
  * prototyping.
  * @param {object} options
  * @param {string} options.cacheDir
+ * @param {string} options.registryUrl
  * @returns {import('rollup').Plugin}
  */
-export function npmAutoInstall({ cacheDir }) {
-	// TODO: Detect from `.npmrc`
-	const registryUrl = 'https://registry.npmjs.org';
-
+export function npmAutoInstall({ cacheDir, registryUrl }) {
 	/** Files that should always be ignored when storing packages */
 	const FILES_EXCLUDE = /([._-]test\.|__tests?|\/tests?\/|\/node_modules\/|\.d\.ts$)/i;
 
diff --git a/packages/wmr/src/plugins/npm-plugin/npm-bundle.js b/packages/wmr/src/plugins/npm-plugin/npm-bundle.js
index 668a2949..f7d71977 100644
--- a/packages/wmr/src/plugins/npm-plugin/npm-bundle.js
+++ b/packages/wmr/src/plugins/npm-plugin/npm-bundle.js
@@ -29,9 +29,10 @@ function customWarn(warning) {
  * @param {boolean} options.production
  * @param {string} options.cacheDir
  * @param {string} options.cwd
+ * @param {string} options.registryUrl
  * @param {Map<string, string>} options.resolutionCache
  */
-export async function npmBundle(requestId, { autoInstall, production, cacheDir, cwd, resolutionCache }) {
+export async function npmBundle(requestId, { autoInstall, production, cacheDir, cwd, resolutionCache, registryUrl }) {
 	const meta = getPackageInfo(requestId);
 	const pkgName = meta.name;
 
@@ -46,7 +47,7 @@ export async function npmBundle(requestId, { autoInstall, production, cacheDir,
 			browserFieldPlugin({ browserReplacement }),
 			npmExternalDeps({ requestId }),
 			!process.env.DISABLE_LOCAL_NPM && npmLocalPackage({ root: cwd }),
-			autoInstall && npmAutoInstall({ cacheDir }),
+			autoInstall && npmAutoInstall({ cacheDir, registryUrl }),
 			npmLoad({ browserReplacement, resolutionCache }),
 			jsonPlugin({ root: cwd }),
 			commonjsPlugin({ production }),
diff --git a/packages/wmr/test/npm.test.js b/packages/wmr/test/npm.test.js
index 0bb56017..03a185ba 100644
--- a/packages/wmr/test/npm.test.js
+++ b/packages/wmr/test/npm.test.js
@@ -7,6 +7,7 @@ import {
 	serveStatic,
 	setupTest,
 	teardown,
+	waitForMessage,
 	waitForPass,
 	withLog
 } from './test-helpers.js';
@@ -267,6 +268,16 @@ describe('node modules', () => {
 				});
 			});
 
+			// eslint-disable-next-line jest/expect-expect
+			it('should fetch package from --registry', async () => {
+				await loadFixture('npm-auto-install-version', env);
+				instance = await runWmrFast(env.tmp.path, '--autoInstall', '--registry', 'https://example.com', {
+					env: { DISABLE_LOCAL_NPM: true }
+				});
+				await getOutput(env, instance);
+				await waitForMessage(instance.output, /500.*https:\/\/example\.com\/smoldash/);
+			});
+
 			it('should load CSS from installed package', async () => {
 				await loadFixture('npm-auto-install-css', env);
 				instance = await runWmrFast(env.tmp.path, '--autoInstall', { env: { DISABLE_LOCAL_NPM: true } });
diff --git a/packages/wmr/types.d.ts b/packages/wmr/types.d.ts
index c7452a9b..dc0ea2bd 100644
--- a/packages/wmr/types.d.ts
+++ b/packages/wmr/types.d.ts
@@ -84,6 +84,10 @@ declare module 'wmr' {
 		 * This is only intended for quick prototyping.
 		 */
 		autoInstall: boolean;
+		/**
+		 * NPM registry url to use if `--autoInstall` is enabled
+		 */
+		registry: string;
 	}
 
 	export type BuildError = RollupError & { clientMessage?: string };