diff --git a/package-lock.json b/package-lock.json
index 19c9f9294b9..212e8720d1d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "jquery.browser": "0.1.0",
         "jquery.cookie": "1.4.1",
         "jszip": "3.5.0",
-        "less": "3.13.0",
+        "less": "4.0.0",
         "source-map": "0.7.3",
         "timeago": "1.6.7",
         "underscore": "1.12.0"
@@ -2292,6 +2292,14 @@
       "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
       "peer": true
     },
+    "node_modules/copy-anything": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/copy-anything/-/copy-anything-2.0.1.tgz",
+      "integrity": "sha512-lA57e7viQHOdPQcrytv5jFeudZZOXuyk47lZym279FiDQ8jeZomXiGuVf6ffMKkJ+3TIai3J1J3yi6M+/4U35g==",
+      "dependencies": {
+        "is-what": "^3.7.1"
+      }
+    },
     "node_modules/copy-descriptor": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
@@ -4806,6 +4814,11 @@
       "resolved": "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz",
       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI="
     },
+    "node_modules/is-what": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/is-what/-/is-what-3.12.0.tgz",
+      "integrity": "sha512-2ilQz5/f/o9V7WRWJQmpFYNmQFZ9iM+OXRonZKcYgTkCzjb949Vi4h282PD1UfmgHk666rcWonbRJ++KI41VGw=="
+    },
     "node_modules/is-windows": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/is-windows/-/is-windows-1.0.2.tgz",
@@ -6031,16 +6044,18 @@
       }
     },
     "node_modules/less": {
-      "version": "3.13.0",
-      "resolved": "https://registry.npmjs.org/less/-/less-3.13.0.tgz",
-      "integrity": "sha512-uPhr9uoSGVKKYVGz0rXcYBK1zjwcIWRGcbnSgNt66XuIZYrYPaQiS+LeUOvqedBwrwdBYYaLqSff5ytGYuT7rA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/less/-/less-4.0.0.tgz",
+      "integrity": "sha512-av1eEa2D0xZfF7fjLJS/Dld7zAYSLU7EOEJvuOELeaNI3i6L/81AdjbK5/pytaRkBwi7ZEa0433IDvMLskKCOw==",
       "dependencies": {
+        "copy-anything": "^2.0.1",
         "errno": "^0.1.1",
         "graceful-fs": "^4.1.2",
         "image-size": "~0.5.0",
         "make-dir": "^2.1.0",
         "mime": "^1.4.1",
         "native-request": "^1.0.5",
+        "parse-node-version": "^1.0.1",
         "source-map": "~0.6.0",
         "tslib": "^1.10.0"
       },
@@ -6909,6 +6924,14 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/parse-node-version": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parse-node-version/-/parse-node-version-1.0.1.tgz",
+      "integrity": "sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA==",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/parse5": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/parse5/-/parse5-3.0.3.tgz",
@@ -11689,6 +11712,14 @@
       "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
       "peer": true
     },
+    "copy-anything": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/copy-anything/-/copy-anything-2.0.1.tgz",
+      "integrity": "sha512-lA57e7viQHOdPQcrytv5jFeudZZOXuyk47lZym279FiDQ8jeZomXiGuVf6ffMKkJ+3TIai3J1J3yi6M+/4U35g==",
+      "requires": {
+        "is-what": "^3.7.1"
+      }
+    },
     "copy-descriptor": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
@@ -13629,6 +13660,11 @@
       "resolved": "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz",
       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI="
     },
+    "is-what": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/is-what/-/is-what-3.12.0.tgz",
+      "integrity": "sha512-2ilQz5/f/o9V7WRWJQmpFYNmQFZ9iM+OXRonZKcYgTkCzjb949Vi4h282PD1UfmgHk666rcWonbRJ++KI41VGw=="
+    },
     "is-windows": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/is-windows/-/is-windows-1.0.2.tgz",
@@ -14626,16 +14662,18 @@
       }
     },
     "less": {
-      "version": "3.13.0",
-      "resolved": "https://registry.npmjs.org/less/-/less-3.13.0.tgz",
-      "integrity": "sha512-uPhr9uoSGVKKYVGz0rXcYBK1zjwcIWRGcbnSgNt66XuIZYrYPaQiS+LeUOvqedBwrwdBYYaLqSff5ytGYuT7rA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/less/-/less-4.0.0.tgz",
+      "integrity": "sha512-av1eEa2D0xZfF7fjLJS/Dld7zAYSLU7EOEJvuOELeaNI3i6L/81AdjbK5/pytaRkBwi7ZEa0433IDvMLskKCOw==",
       "requires": {
+        "copy-anything": "^2.0.1",
         "errno": "^0.1.1",
         "graceful-fs": "^4.1.2",
         "image-size": "~0.5.0",
         "make-dir": "^2.1.0",
         "mime": "^1.4.1",
         "native-request": "^1.0.5",
+        "parse-node-version": "^1.0.1",
         "source-map": "~0.6.0",
         "tslib": "^1.10.0"
       },
@@ -15287,6 +15325,11 @@
         "lines-and-columns": "^1.1.6"
       }
     },
+    "parse-node-version": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parse-node-version/-/parse-node-version-1.0.1.tgz",
+      "integrity": "sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA=="
+    },
     "parse5": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/parse5/-/parse5-3.0.3.tgz",
diff --git a/package.json b/package.json
index 1a6663b9209..4926bd748e7 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "jquery.browser": "0.1.0",
     "jquery.cookie": "1.4.1",
     "jszip": "3.5.0",
-    "less": "3.13.0",
+    "less": "4.0.0",
     "source-map": "0.7.3",
     "timeago": "1.6.7",
     "underscore": "1.12.0"