diff --git a/package.json b/package.json
index 7dee2b4..8b02778 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "karma-mocha-own-reporter": "^1.1.2",
     "karma-opera-launcher": "^1.0.0",
     "karma-safari-launcher": "^1.0.0",
-    "karma-webpack": "^2.0.4",
+    "karma-webpack": "^4.0.2",
     "mocha": "^3.5.0",
     "mocha-lazy-bdd": "^0.1.2",
     "power-assert": "^1.4.4",