diff --git a/package.json b/package.json
index f2c760ed19cc1..f6700c45a1fb5 100644
--- a/package.json
+++ b/package.json
@@ -334,6 +334,7 @@
     "tslint-config-prettier": "^1.15.0",
     "tslint-plugin-prettier": "^2.0.0",
     "typescript": "^3.0.3",
+    "upath": "^1.1.0",
     "vinyl-fs": "^3.0.2",
     "xml2js": "^0.4.19",
     "xmlbuilder": "9.0.4",
diff --git a/src/dev/file.ts b/src/dev/file.ts
index 2e576a02ed791..8e42f3be35b24 100644
--- a/src/dev/file.ts
+++ b/src/dev/file.ts
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { dirname, extname, join, relative, resolve, sep } from 'path';
+import { dirname, extname, join, relative, resolve, sep } from 'upath';
 
 import { REPO_ROOT } from './constants';
 
diff --git a/src/dev/npm/installed_packages.js b/src/dev/npm/installed_packages.js
index 4ec96084c38c5..75bc783dd2a12 100644
--- a/src/dev/npm/installed_packages.js
+++ b/src/dev/npm/installed_packages.js
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { relative, resolve } from 'path';
+import { relative, resolve } from 'upath';
 import { readFileSync } from 'fs';
 
 import { callLicenseChecker } from './license_checker';
diff --git a/yarn.lock b/yarn.lock
index b7432f023e971..a1c062d529044 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13971,6 +13971,10 @@ upath@^1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
 
+upath@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
+
 update-notifier@^0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-0.5.0.tgz#07b5dc2066b3627ab3b4f530130f7eddda07a4cc"