diff --git a/t/plugin/grpc-web/package-lock.json b/t/plugin/grpc-web/package-lock.json
index bd3ec9217656..02c7f981fa4b 100644
--- a/t/plugin/grpc-web/package-lock.json
+++ b/t/plugin/grpc-web/package-lock.json
@@ -25,7 +25,7 @@
     },
     "node_modules/xhr2": {
       "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/xhr2/download/xhr2-0.2.1.tgz",
+      "resolved": "https://registry.npmmirror.com/xhr2/download/xhr2-0.2.1.tgz",
       "integrity": "sha1-TnOtxPnP7Jy9IVf3Pv3OOl8QipM=",
       "engines": {
         "node": ">= 6"
@@ -45,7 +45,7 @@
     },
     "xhr2": {
       "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/xhr2/download/xhr2-0.2.1.tgz",
+      "resolved": "https://registry.npmmirror.com/xhr2/download/xhr2-0.2.1.tgz",
       "integrity": "sha1-TnOtxPnP7Jy9IVf3Pv3OOl8QipM="
     }
   }