diff --git a/package-overrides/npm/mocha@3.0.0.json b/package-overrides/npm/mocha@3.0.0.json
index 887a86a..5601da3 100644
--- a/package-overrides/npm/mocha@3.0.0.json
+++ b/package-overrides/npm/mocha@3.0.0.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "css": "*",
     "debug": "^2.2.0",
-    "json3": "3.3.2"
+    "json3": "npm:json3@3.3.2"
   },
   "registry": "jspm",
   "map": {