diff --git a/package.json b/package.json
index 547e50e..6854162 100644
--- a/package.json
+++ b/package.json
@@ -129,7 +129,7 @@
     "protractor": "^3.0.0",
     "protractor-html-screenshot-reporter": "0.0.21",
     "raw-loader": "^0.5.1",
-    "sass-loader": "^3.1.2",
+    "sass-loader": "^4.0.2",
     "script-loader": "^0.6.1",
     "sinon": "^1.17.2",
     "sinon-chai": "^2.7.0",