diff --git a/package.json b/package.json
index efebd64..3b42383 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "father": "^2.22.0",
     "father-build": "^1.18.6",
     "gh-pages": "^3.1.0",
-    "less": "^3.0.0",
+    "less": "^4.2.0",
     "np": "^7.0.0",
     "rc-tooltip": "^5.0.1",
     "react": "^16.0.0",