diff --git a/package.json b/package.json
index bced916..08054ca 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "chai": "^3.5.0",
     "eslint": "^3.19.0",
     "eslint-config-spreetail": "^2.0.1",
-    "karma": "^1.7.0",
+    "karma": "^4.2.0",
     "karma-chai": "^0.1.0",
     "karma-mocha": "^1.3.0",
     "karma-phantomjs-launcher": "^1.0.4",