diff --git a/package.json b/package.json
index 5e404e7..caef48a 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "father-build": "^1.18.6",
     "gh-pages": "^3.1.0",
     "husky": "^4.2.5",
-    "less": "^3.10.3",
+    "less": "^4.1.1",
     "np": "^7.0.0",
     "prettier": "^2.0.5",
     "pretty-quick": "^3.0.0",