diff --git a/package.json b/package.json
index 7be6b68..b84d4d5 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,7 @@
     "karma-mocha": "1.3.0",
     "karma-mocha-reporter": "2.2.3",
     "karma-phantomjs-launcher": "1.0.4",
-    "karma-sauce-launcher": "1.1.0",
+    "karma-sauce-launcher": "4.0.0",
     "karma-sourcemap-loader": "0.3.7",
     "karma-webpack": "1.8.0",
     "mocha": "3.4.2",