diff --git a/package.json b/package.json
index a6ce0613e0..d9fd32ff7e 100644
--- a/package.json
+++ b/package.json
@@ -96,6 +96,7 @@
     "gulp-eslint": "~0.9.0",
     "gulp-inject": "~1.0.2",
     "gulp-nodemon": "^2.0.3",
+    "loopback-explorer": "^1.7.2",
     "mocha": "~2.0.1",
     "multiline": "~1.0.1",
     "supertest": "~0.15.0"