diff --git a/package.json b/package.json
index f7c844011..d65fd546c 100644
--- a/package.json
+++ b/package.json
@@ -189,7 +189,7 @@
     "html-webpack-plugin": "4.5.1",
     "imports-loader": "1.2.0",
     "jsonlint": "1.6.3",
-    "less": "3.13.1",
+    "less": "4.1.1",
     "less-loader": "7.3.0",
     "mini-css-extract-plugin": "0.12.0",
     "mocha": "5.2.0",
diff --git a/yarn.lock b/yarn.lock
index fd714fa5b..56511774e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6071,12 +6071,13 @@ less-loader@7.3.0:
     loader-utils "^2.0.0"
     schema-utils "^3.0.0"
 
-less@3.13.1:
-  version "3.13.1"
-  resolved "https://registry.yarnpkg.com/less/-/less-3.13.1.tgz#0ebc91d2a0e9c0c6735b83d496b0ab0583077909"
-  integrity sha512-SwA1aQXGUvp+P5XdZslUOhhLnClSLIjWvJhmd+Vgib5BFIr9lMNlQwmwUNOjXThF/A0x+MCYYPeWEfeWiLRnTw==
+less@4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/less/-/less-4.1.1.tgz#15bf253a9939791dc690888c3ff424f3e6c7edba"
+  integrity sha512-w09o8tZFPThBscl5d0Ggp3RcrKIouBoQscnOMgFH3n5V3kN/CXGHNfCkRPtxJk6nKryDXaV9aHLK55RXuH4sAw==
   dependencies:
     copy-anything "^2.0.1"
+    parse-node-version "^1.0.1"
     tslib "^1.10.0"
   optionalDependencies:
     errno "^0.1.1"
@@ -6084,7 +6085,7 @@ less@3.13.1:
     image-size "~0.5.0"
     make-dir "^2.1.0"
     mime "^1.4.1"
-    native-request "^1.0.5"
+    needle "^2.5.2"
     source-map "~0.6.0"
 
 levn@^0.3.0, levn@~0.3.0:
@@ -7101,11 +7102,6 @@ native-duplexpair@^1.0.0:
   resolved "https://registry.yarnpkg.com/native-duplexpair/-/native-duplexpair-1.0.0.tgz#7899078e64bf3c8a3d732601b3d40ff05db58fa0"
   integrity sha1-eJkHjmS/PIo9cyYBs9QP8F21j6A=
 
-native-request@^1.0.5:
-  version "1.0.8"
-  resolved "https://registry.yarnpkg.com/native-request/-/native-request-1.0.8.tgz#8f66bf606e0f7ea27c0e5995eb2f5d03e33ae6fb"
-  integrity sha512-vU2JojJVelUGp6jRcLwToPoWGxSx23z/0iX+I77J3Ht17rf2INGjrhOoQnjVo60nQd8wVsgzKkPfRXBiVdD2ag==
-
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -7116,7 +7112,7 @@ ncp@~2.0.0:
   resolved "https://registry.yarnpkg.com/ncp/-/ncp-2.0.0.tgz#195a21d6c46e361d2fb1281ba38b91e9df7bdbb3"
   integrity sha1-GVoh1sRuNh0vsSgbo4uR6d9727M=
 
-needle@^2.2.1:
+needle@^2.2.1, needle@^2.5.2:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/needle/-/needle-2.6.0.tgz#24dbb55f2509e2324b4a99d61f413982013ccdbe"
   integrity sha512-KKYdza4heMsEfSWD7VPUIz3zX2XDwOyX2d+geb4vrERZMT5RMU6ujjaD+I5Yr54uZxQ2w6XRTAhHBbSCyovZBg==
@@ -7686,6 +7682,11 @@ parse-json@^5.0.0:
     json-parse-even-better-errors "^2.3.0"
     lines-and-columns "^1.1.6"
 
+parse-node-version@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-node-version/-/parse-node-version-1.0.1.tgz#e2b5dbede00e7fa9bc363607f53327e8b073189b"
+  integrity sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA==
+
 parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"