diff --git a/package.json b/package.json
index fa9ad2573e1..30dd663668f 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "json-loader": "^0.5.7",
     "json5": "^2.1.3",
     "less": "^4.0.0",
-    "less-loader": "^8.0.0",
+    "less-loader": "^9.0.0",
     "lint-staged": "^11.0.0",
     "loader-utils": "^2.0.0",
     "lodash": "^4.17.19",
diff --git a/yarn.lock b/yarn.lock
index 56887d4c27e..860eb100396 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4362,10 +4362,10 @@ lcov-parse@^1.0.0:
   resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-1.0.0.tgz#eb0d46b54111ebc561acb4c408ef9363bdc8f7e0"
   integrity sha1-6w1GtUER68VhrLTECO+TY73I9+A=
 
-less-loader@^8.0.0:
-  version "8.1.1"
-  resolved "https://registry.yarnpkg.com/less-loader/-/less-loader-8.1.1.tgz#ababe912580457ad00a4318146aac5b53e023f42"
-  integrity sha512-K93jJU7fi3n6rxVvzp8Cb88Uy9tcQKfHlkoezHwKILXhlNYiRQl4yowLIkQqmBXOH/5I8yoKiYeIf781HGkW9g==
+less-loader@^9.0.0:
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/less-loader/-/less-loader-9.0.0.tgz#71a0b530174bddf89bb11a5019dd725f54df4791"
+  integrity sha512-bPen1xeGTZuYFFobcdz9kMUVgSSSDZQJtyhawtCtcz1QboQOwhkI7uCwp5UO+IZpO+LJS1W73YwxsufbBT6SBQ==
   dependencies:
     klona "^2.0.4"