From d67f9670bda61acff6d9fc8c6c8fd64d1be3b44d Mon Sep 17 00:00:00 2001
From: Xiliang Chen <xlchen1291@gmail.com>
Date: Wed, 1 May 2019 17:26:06 +1200
Subject: [PATCH] ensure single package for ui-keyring (#120)

---
 package.json                     | 2 +-
 packages/ui-keyring/src/index.ts | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 77959342..bb31a6aa 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "version": "0.38.0-beta.5",
   "private": true,
   "engines": {
-    "node": "^10.13.0",
+    "node": ">=10.13.0",
     "yarn": "^1.10.1"
   },
   "homepage": ".",
diff --git a/packages/ui-keyring/src/index.ts b/packages/ui-keyring/src/index.ts
index c96c23dd..437072ab 100644
--- a/packages/ui-keyring/src/index.ts
+++ b/packages/ui-keyring/src/index.ts
@@ -2,8 +2,12 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
+import { assertSingletonPackage } from '@polkadot/util';
+
 import keyring, { Keyring } from './Keyring';
 
+assertSingletonPackage('@polkadot/ui-keyring');
+
 export default keyring;
 
 export {