3 files changed, 6 insertions, 5 deletions
diff --git a/packages/monorepo-scripts/src/prepublish_checks.ts b/packages/monorepo-scripts/src/prepublish_checks.ts
index 431e848ca..683c26094 100644
--- a/packages/monorepo-scripts/src/prepublish_checks.ts
+++ b/packages/monorepo-scripts/src/prepublish_checks.ts
@@ -50,7 +50,7 @@ async function checkGitTagsForNextVersionAndDeleteIfExistAsync(updatedPublicPack
 async function checkCurrentVersionMatchesLatestPublishedNPMPackageAsync(
     updatedPublicPackages: Package[],
 ): Promise<void> {
-    utils.log('Check package versions against npmjs.org...');
+    utils.log('Check package versions against npm registry...');
     const versionMismatches = [];
     for (const pkg of updatedPublicPackages) {
         const packageName = pkg.packageJson.name;
diff --git a/packages/monorepo-scripts/src/publish.ts b/packages/monorepo-scripts/src/publish.ts
index c44e1f85e..53492e012 100644
--- a/packages/monorepo-scripts/src/publish.ts
+++ b/packages/monorepo-scripts/src/publish.ts
@@ -172,8 +172,7 @@ async function updateChangeLogsAsync(updatedPublicPackages: Package[]): Promise<
 async function lernaPublishAsync(packageToVersionChange: { [name: string]: string }): Promise<void> {
     // HACK: Lerna publish does not provide a way to specify multiple package versions via
     // flags so instead we need to interact with their interactive prompt interface.
-    const PACKAGE_REGISTRY = 'https://registry.npmjs.org/';
-    const child = spawn('lerna', ['publish', `--registry=${PACKAGE_REGISTRY}`], {
+    const child = spawn('lerna', ['publish'], {
         cwd: constants.monorepoRootPath,
     });
     let shouldPrintOutput = false;
diff --git a/packages/monorepo-scripts/src/utils/npm_utils.ts b/packages/monorepo-scripts/src/utils/npm_utils.ts
index cc1e046e7..7c8310459 100644
--- a/packages/monorepo-scripts/src/utils/npm_utils.ts
+++ b/packages/monorepo-scripts/src/utils/npm_utils.ts
@@ -1,9 +1,11 @@
+import * as fs from 'fs';
 import 'isomorphic-fetch';
 import * as _ from 'lodash';
 
 import { PackageRegistryJson } from '../types';
 
-const NPM_REGISTRY_BASE_URL = 'https://registry.npmjs.org';
+const lernaJson = JSON.parse(fs.readFileSync('lerna.json').toString());
+const NPM_REGISTRY_BASE_URL = lernaJson.registry;
 const SUCCESS_STATUS = 200;
 const NOT_FOUND_STATUS = 404;
 
@@ -15,7 +17,7 @@ export const npmUtils = {
         if (response.status === NOT_FOUND_STATUS) {
             return undefined;
         } else if (response.status !== SUCCESS_STATUS) {
-            throw new Error(`Request to ${url} failed. Check your internet connection and that npmjs.org is up.`);
+            throw new Error(`Request to ${url} failed. Check your internet connection and that npm registry is up.`);
         }
         const packageRegistryJson = await response.json();
         return packageRegistryJson;