diff --git a/package.json b/package.json
index 1bc2b3fc06..d5990fc5aa 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "readline-sync": "^1.2.19",
     "rimraf": "^2.4.1",
     "semver": "^5.0.0",
+    "shelljs": "^0.5.1",
     "uglify-js": "^2.4.16"
   }
 }