diff --git a/package.json b/package.json
index 28e9fb3..fbb32f0 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,8 @@
     "mocha": "^3.2.0",
     "power-assert": "^1.4.2",
     "ts-loader": "^2.3.7",
-    "typescript": "^2.1.5"
+    "typescript": "^2.1.5",
+    "webpack": "^3.6.0"
   },
   "dependencies": {
     "es6-promise": "^4.0.5",