diff --git a/package.json b/package.json
index a9b5ea8..9a76da9 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "father": "^2.23.1",
     "father-build": "^1.18.6",
     "gh-pages": "^3.1.0",
-    "less": "^3.11.1",
+    "less": "^4.1.1",
     "np": "^7.1.0",
     "react": "^16.10.2",
     "react-dom": "^16.10.2",