diff --git a/package.json b/package.json
index 1c6b8a4..dbea831 100644
--- a/package.json
+++ b/package.json
@@ -116,7 +116,7 @@
     "koa-static": "^5.0.0",
     "koa-webpack-dev-middleware": "^2.0.2",
     "less": "^3.9.0",
-    "less-loader": "^4.1.0",
+    "less-loader": "^7.2.1",
     "match-require": "2.x",
     "merge2": "~1.2.3",
     "mini-css-extract-plugin": "^0.5.0",