diff --git a/package.json b/package.json
index 0b181100..d8c84a49 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "gulp-yarn": "2.0.0",
     "gulp-zip": "4.2.0",
     "husky": "1.1.4",
-    "less": "3.8.1",
+    "less": "3.9.0",
     "lint-staged": "8.0.4",
     "main-bower-files": "2.13.1",
     "prettier": "1.15.2",
diff --git a/yarn.lock b/yarn.lock
index f700fabd..61bf7ba8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4193,10 +4193,10 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
-"less@2.6.x || ^3.7.1", less@3.8.1:
-  version "3.8.1"
-  resolved "https://registry.yarnpkg.com/less/-/less-3.8.1.tgz#f31758598ef5a1930dd4caefa9e4340641e71e1d"
-  integrity sha512-8HFGuWmL3FhQR0aH89escFNBQH/nEiYPP2ltDFdQw2chE28Yx2E3lhAIq9Y2saYwLSwa699s4dBVEfCY8Drf7Q==
+"less@2.6.x || ^3.7.1", less@3.9.0:
+  version "3.9.0"
+  resolved "https://registry.yarnpkg.com/less/-/less-3.9.0.tgz#b7511c43f37cf57dc87dffd9883ec121289b1474"
+  integrity sha512-31CmtPEZraNUtuUREYjSqRkeETFdyEHSEPAGq4erDlUXtda7pzNmctdljdIagSb589d/qXGWiiP31R5JVf+v0w==
   dependencies:
     clone "^2.1.2"
   optionalDependencies: