diff --git a/composer.json b/composer.json
index 6aa9355cec7b1..f9c310abbe6e1 100644
--- a/composer.json
+++ b/composer.json
@@ -80,7 +80,7 @@
         "tedivm/jshrink": "~1.3.0",
         "tubalmartin/cssmin": "4.1.1",
         "webonyx/graphql-php": "^0.13.8",
-        "wikimedia/less.php": "~1.8.0",
+        "wikimedia/less.php": "^3.0.0",
         "league/flysystem": "^1.0",
         "league/flysystem-aws-s3-v3": "^1.0",
         "league/flysystem-cached-adapter": "^1.0"
diff --git a/composer.lock b/composer.lock
index b0b15f4e13f6c..8e30d813ded43 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ac6fc13ba98a815bce589d300d28012c",
+    "content-hash": "7eecadfa81f5a39ced573e6a4e7dad2a",
     "packages": [
         {
             "name": "aws/aws-sdk-php",
@@ -1459,6 +1459,12 @@
                 "BSD-3-Clause"
             ],
             "description": "Replace zendframework and zfcampus packages with their Laminas Project equivalents.",
+            "funding": [
+                {
+                    "url": "https://funding.communitybridge.org/projects/laminas-project",
+                    "type": "community_bridge"
+                }
+            ],
             "time": "2020-05-20T13:45:39+00:00"
         },
         {
@@ -6243,23 +6249,27 @@
         },
         {
             "name": "wikimedia/less.php",
-            "version": "1.8.2",
+            "version": "v3.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/wikimedia/less.php.git",
-                "reference": "e238ad228d74b6ffd38209c799b34e9826909266"
+                "reference": "a486d78b9bd16b72f237fc6093aa56d69ce8bd13"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/wikimedia/less.php/zipball/e238ad228d74b6ffd38209c799b34e9826909266",
-                "reference": "e238ad228d74b6ffd38209c799b34e9826909266",
+                "url": "https://api.github.com/repos/wikimedia/less.php/zipball/a486d78b9bd16b72f237fc6093aa56d69ce8bd13",
+                "reference": "a486d78b9bd16b72f237fc6093aa56d69ce8bd13",
                 "shasum": ""
             },
             "require": {
                 "php": ">=7.2.9"
             },
             "require-dev": {
-                "phpunit/phpunit": "7.5.14"
+                "mediawiki/mediawiki-codesniffer": "34.0.0",
+                "mediawiki/minus-x": "1.0.0",
+                "php-parallel-lint/php-console-highlighter": "0.5.0",
+                "php-parallel-lint/php-parallel-lint": "1.2.0",
+                "phpunit/phpunit": "^8.5"
             },
             "bin": [
                 "bin/lessc"
@@ -6300,7 +6310,7 @@
                 "php",
                 "stylesheet"
             ],
-            "time": "2019-11-06T18:30:11+00:00"
+            "time": "2020-12-11T19:33:31+00:00"
         }
     ],
     "packages-dev": [
@@ -7548,6 +7558,20 @@
                 "parser",
                 "php"
             ],
+            "funding": [
+                {
+                    "url": "https://www.doctrine-project.org/sponsorship.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://www.patreon.com/phpdoctrine",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/doctrine%2Flexer",
+                    "type": "tidelift"
+                }
+            ],
             "time": "2020-05-25T17:44:05+00:00"
         },
         {
@@ -9538,6 +9562,20 @@
                 "MIT"
             ],
             "description": "PHPStan - PHP Static Analysis Tool",
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://www.patreon.com/phpstan",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
+                    "type": "tidelift"
+                }
+            ],
             "time": "2020-05-05T12:55:44+00:00"
         },
         {
@@ -9827,6 +9865,12 @@
             "keywords": [
                 "timer"
             ],
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
             "time": "2020-04-20T06:00:37+00:00"
         },
         {
@@ -9971,6 +10015,16 @@
                 "testing",
                 "xunit"
             ],
+            "funding": [
+                {
+                    "url": "https://phpunit.de/donate.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
             "time": "2020-05-22T13:54:05+00:00"
         },
         {