diff --git a/package.json b/package.json
index 048fef4..5cc0992 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "stylus-loader": "^3.0.2",
     "url-loader": "^1.1.1",
     "webpack": "^4.17.1",
-    "webpack-cli": "^3.1.0"
+    "webpack-cli": "^3.1.0",
+    "webpack-dev-server": "^3.1.5"
   },
   "dependencies": {
     "dashjs": "^2.9.0"