diff --git a/package.json b/package.json
index 18b7994..a8d51a9 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "karma-spec-reporter": "0.0.31",
     "karma-webpack": "^2.0.2",
     "less": "^2.7.2",
-    "less-loader": "^4.0.0",
+    "less-loader": "^5.0.0",
     "mocha": "^3.2.0",
     "nyc": "^11.0.1",
     "pre-commit": "^1.2.2",