diff --git a/components/CssCompiler.php b/components/CssCompiler.php
index 658a60c4e..a61639144 100644
--- a/components/CssCompiler.php
+++ b/components/CssCompiler.php
@@ -1,8 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 namespace app\components;
 
-use ScssPhp\ScssPhp\Parser;
+use ScssPhp\ScssPhp\Compiler;
+use ScssPhp\ScssPhp\OutputStyle;
 
 /**
  * This is a workaround for missing math.div support in scssphp.
@@ -13,36 +16,45 @@
  *
  * Relevant test case: appearance/CustomThemeCept
  */
-class CssCompiler extends \ScssPhp\ScssPhp\Compiler
+class CssCompiler
 {
-    protected function parserFactory($path): Parser
+    public function compileCss(string $css): string
     {
-        $cssOnly = false;
+        $tmpDir = \app\models\settings\AntragsgruenApp::getInstance()->getTmpDir();
 
-        if ($path !== null && substr($path, -4) === '.css') {
-            $cssOnly = true;
-        }
+        $this->copyAndFixScss($tmpDir);
 
-        $parser = new class($path, \count($this->sourceNames), $this->encoding, $this->cache, $cssOnly) extends Parser {
-            public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8', \ScssPhp\ScssPhp\Cache $cache = null, $cssOnly = false, \ScssPhp\ScssPhp\Logger\LoggerInterface $logger = null)
-            {
-                parent::__construct($sourceName, $sourceIndex, $encoding, $cache, $cssOnly, $logger);
-            }
+        $scss = new Compiler();
+        $scss->addImportPath($tmpDir . 'css-compile');
+        $scss->setOutputStyle(OutputStyle::COMPRESSED);
 
-            public function parse($buffer)
-            {
-                $buffer = str_replace('@use "sass:math";', '', $buffer);
-                $buffer = preg_replace_callback('/math\.div\((?<first>[^,]*), (?<second>[^)]+)\)/siu', function ($matches): string {
-                    return $matches['first'] . ' / ' . $matches['second'];
-                }, $buffer);
+        return $scss->compileString($css)->getCss();
+    }
 
-                return parent::parse($buffer);
+    private function copyAndFixScss(string $tmpDir): void
+    {
+        $filesystem = new \Symfony\Component\Filesystem\Filesystem();
+        $filesystem->mirror(\Yii::$app->basePath . '/web/css', $tmpDir . 'css-compile');
+        $filesystem->mirror(\Yii::$app->basePath . '/web/fonts', $tmpDir . 'fonts');
+
+        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($tmpDir, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST);
+        foreach ($iterator as $file) {
+            if (!str_ends_with($file->getPathname(), 'scss')) {
+                continue;
             }
-        };
 
-        $this->sourceNames[] = $path;
-        $this->addParsedFile($path);
+            $content = file_get_contents($file->getPathname());
+            file_put_contents($file->getPathname(), $this->fixCss($content));
+        }
+    }
+
+    private function fixCss(String $css): string
+    {
+        $css = str_replace('@use "sass:math";', '', $css);
+        $css = preg_replace_callback('/math\.div\((?<first>[^,]*), (?<second>[^)]+)\)/siu', function ($matches): string {
+            return $matches['first'] . ' / ' . $matches['second'];
+        }, $css);
 
-        return $parser;
+        return $css;
     }
 }
diff --git a/composer.json b/composer.json
index 1ffafff7a..dbf19443e 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
     "phpoffice/phpspreadsheet": "^3.3",
     "predis/predis": "^2.2",
     "s1syphos/php-simple-captcha": "^2.3",
-    "scssphp/scssphp": "^1.13.0",
+    "scssphp/scssphp": "dev-main#12d3cdf0fc2a73e9438ded5a5a82fb353b68d718 as 1.13.0",
     "setasign/fpdi": "^2.3.7",
     "spomky-labs/otphp": "^11.3",
     "symfony/amazon-mailer": "^5.4.23",
diff --git a/composer.lock b/composer.lock
index 457547f00..d64478902 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": "412e28ab5b578a3962d8d9f0f8e19ede",
+    "content-hash": "4766a046699135157aeeaf06f9e42ebf",
     "packages": [
         {
             "name": "async-aws/core",
@@ -1301,6 +1301,180 @@
             ],
             "time": "2024-07-18T11:15:46+00:00"
         },
+        {
+            "name": "league/uri",
+            "version": "7.4.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thephpleague/uri.git",
+                "reference": "bedb6e55eff0c933668addaa7efa1e1f2c417cc4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thephpleague/uri/zipball/bedb6e55eff0c933668addaa7efa1e1f2c417cc4",
+                "reference": "bedb6e55eff0c933668addaa7efa1e1f2c417cc4",
+                "shasum": ""
+            },
+            "require": {
+                "league/uri-interfaces": "^7.3",
+                "php": "^8.1"
+            },
+            "conflict": {
+                "league/uri-schemes": "^1.0"
+            },
+            "suggest": {
+                "ext-bcmath": "to improve IPV4 host parsing",
+                "ext-fileinfo": "to create Data URI from file contennts",
+                "ext-gmp": "to improve IPV4 host parsing",
+                "ext-intl": "to handle IDN host with the best performance",
+                "jeremykendall/php-domain-parser": "to resolve Public Suffix and Top Level Domain",
+                "league/uri-components": "Needed to easily manipulate URI objects components",
+                "php-64bit": "to improve IPV4 host parsing",
+                "symfony/polyfill-intl-idn": "to handle IDN host via the Symfony polyfill if ext-intl is not present"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "7.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "League\\Uri\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ignace Nyamagana Butera",
+                    "email": "nyamsprod@gmail.com",
+                    "homepage": "https://nyamsprod.com"
+                }
+            ],
+            "description": "URI manipulation library",
+            "homepage": "https://uri.thephpleague.com",
+            "keywords": [
+                "data-uri",
+                "file-uri",
+                "ftp",
+                "hostname",
+                "http",
+                "https",
+                "middleware",
+                "parse_str",
+                "parse_url",
+                "psr-7",
+                "query-string",
+                "querystring",
+                "rfc3986",
+                "rfc3987",
+                "rfc6570",
+                "uri",
+                "uri-template",
+                "url",
+                "ws"
+            ],
+            "support": {
+                "docs": "https://uri.thephpleague.com",
+                "forum": "https://thephpleague.slack.com",
+                "issues": "https://github.com/thephpleague/uri-src/issues",
+                "source": "https://github.com/thephpleague/uri/tree/7.4.1"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sponsors/nyamsprod",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-23T07:42:40+00:00"
+        },
+        {
+            "name": "league/uri-interfaces",
+            "version": "7.4.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thephpleague/uri-interfaces.git",
+                "reference": "8d43ef5c841032c87e2de015972c06f3865ef718"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thephpleague/uri-interfaces/zipball/8d43ef5c841032c87e2de015972c06f3865ef718",
+                "reference": "8d43ef5c841032c87e2de015972c06f3865ef718",
+                "shasum": ""
+            },
+            "require": {
+                "ext-filter": "*",
+                "php": "^8.1",
+                "psr/http-factory": "^1",
+                "psr/http-message": "^1.1 || ^2.0"
+            },
+            "suggest": {
+                "ext-bcmath": "to improve IPV4 host parsing",
+                "ext-gmp": "to improve IPV4 host parsing",
+                "ext-intl": "to handle IDN host with the best performance",
+                "php-64bit": "to improve IPV4 host parsing",
+                "symfony/polyfill-intl-idn": "to handle IDN host via the Symfony polyfill if ext-intl is not present"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "7.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "League\\Uri\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ignace Nyamagana Butera",
+                    "email": "nyamsprod@gmail.com",
+                    "homepage": "https://nyamsprod.com"
+                }
+            ],
+            "description": "Common interfaces and classes for URI representation and interaction",
+            "homepage": "https://uri.thephpleague.com",
+            "keywords": [
+                "data-uri",
+                "file-uri",
+                "ftp",
+                "hostname",
+                "http",
+                "https",
+                "parse_str",
+                "parse_url",
+                "psr-7",
+                "query-string",
+                "querystring",
+                "rfc3986",
+                "rfc3987",
+                "rfc6570",
+                "uri",
+                "url",
+                "ws"
+            ],
+            "support": {
+                "docs": "https://uri.thephpleague.com",
+                "forum": "https://thephpleague.slack.com",
+                "issues": "https://github.com/thephpleague/uri-src/issues",
+                "source": "https://github.com/thephpleague/uri-interfaces/tree/7.4.1"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sponsors/nyamsprod",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-23T07:42:40+00:00"
+        },
         {
             "name": "maennchen/zipstream-php",
             "version": "3.1.1",
@@ -2436,41 +2610,43 @@
         },
         {
             "name": "scssphp/scssphp",
-            "version": "v1.13.0",
+            "version": "dev-main",
             "source": {
                 "type": "git",
                 "url": "https://github.com/scssphp/scssphp.git",
-                "reference": "63d1157457e5554edf00b0c1fabab4c1511d2520"
+                "reference": "12d3cdf0fc2a73e9438ded5a5a82fb353b68d718"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/scssphp/scssphp/zipball/63d1157457e5554edf00b0c1fabab4c1511d2520",
-                "reference": "63d1157457e5554edf00b0c1fabab4c1511d2520",
+                "url": "https://api.github.com/repos/scssphp/scssphp/zipball/12d3cdf0fc2a73e9438ded5a5a82fb353b68d718",
+                "reference": "12d3cdf0fc2a73e9438ded5a5a82fb353b68d718",
                 "shasum": ""
             },
             "require": {
                 "ext-ctype": "*",
                 "ext-json": "*",
-                "php": ">=5.6.0"
+                "league/uri": "^7.4",
+                "league/uri-interfaces": "^7.4",
+                "php": ">=8.1",
+                "symfony/filesystem": "^5.4 || ^6.0 || ^7.0",
+                "symfony/polyfill-mbstring": "^1.30"
             },
             "require-dev": {
                 "bamarni/composer-bin-plugin": "^1.4",
-                "phpunit/phpunit": "^5.7 || ^6.5 || ^7.5 || ^8.3 || ^9.4",
+                "phpunit/phpunit": "^9.5.6",
                 "sass/sass-spec": "*",
                 "squizlabs/php_codesniffer": "~3.5",
                 "symfony/phpunit-bridge": "^5.1",
+                "symfony/var-dumper": "^6.3",
                 "thoughtbot/bourbon": "^7.0",
                 "twbs/bootstrap": "~5.0",
                 "twbs/bootstrap4": "4.6.1",
                 "zurb/foundation": "~6.7.0"
             },
             "suggest": {
-                "ext-iconv": "Can be used as fallback when ext-mbstring is not available",
-                "ext-mbstring": "For best performance, mbstring should be installed as it is faster than ext-iconv"
+                "ext-mbstring": "For best performance, mbstring should be installed as it is faster than the polyfill"
             },
-            "bin": [
-                "bin/pscss"
-            ],
+            "default-branch": true,
             "type": "library",
             "extra": {
                 "bamarni-bin": {
@@ -2510,9 +2686,9 @@
             ],
             "support": {
                 "issues": "https://github.com/scssphp/scssphp/issues",
-                "source": "https://github.com/scssphp/scssphp/tree/v1.13.0"
+                "source": "https://github.com/scssphp/scssphp/tree/main"
             },
-            "time": "2024-08-17T21:02:11+00:00"
+            "time": "2024-10-24T15:03:30+00:00"
         },
         {
             "name": "setasign/fpdi",
@@ -3030,6 +3206,73 @@
             ],
             "time": "2024-04-18T09:32:20+00:00"
         },
+        {
+            "name": "symfony/filesystem",
+            "version": "v5.4.45",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/filesystem.git",
+                "reference": "57c8294ed37d4a055b77057827c67f9558c95c54"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/57c8294ed37d4a055b77057827c67f9558c95c54",
+                "reference": "57c8294ed37d4a055b77057827c67f9558c95c54",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-mbstring": "~1.8",
+                "symfony/polyfill-php80": "^1.16"
+            },
+            "require-dev": {
+                "symfony/process": "^5.4|^6.4"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Filesystem\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides basic utilities for the filesystem",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/filesystem/tree/v5.4.45"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-10-22T13:05:35+00:00"
+        },
         {
             "name": "symfony/http-client",
             "version": "v5.4.45",
@@ -8437,73 +8680,6 @@
             ],
             "time": "2024-10-22T13:05:35+00:00"
         },
-        {
-            "name": "symfony/filesystem",
-            "version": "v5.4.45",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/filesystem.git",
-                "reference": "57c8294ed37d4a055b77057827c67f9558c95c54"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/57c8294ed37d4a055b77057827c67f9558c95c54",
-                "reference": "57c8294ed37d4a055b77057827c67f9558c95c54",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=7.2.5",
-                "symfony/polyfill-ctype": "~1.8",
-                "symfony/polyfill-mbstring": "~1.8",
-                "symfony/polyfill-php80": "^1.16"
-            },
-            "require-dev": {
-                "symfony/process": "^5.4|^6.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\Filesystem\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Provides basic utilities for the filesystem",
-            "homepage": "https://symfony.com",
-            "support": {
-                "source": "https://github.com/symfony/filesystem/tree/v5.4.45"
-            },
-            "funding": [
-                {
-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/fabpot",
-                    "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
-                    "type": "tidelift"
-                }
-            ],
-            "time": "2024-10-22T13:05:35+00:00"
-        },
         {
             "name": "symfony/finder",
             "version": "v5.4.45",
@@ -9018,12 +9194,19 @@
             "version": "dev-main",
             "alias": "1.0.6",
             "alias_normalized": "1.0.6.0"
+        },
+        {
+            "package": "scssphp/scssphp",
+            "version": "dev-main",
+            "alias": "1.13.0",
+            "alias_normalized": "1.13.0.0"
         }
     ],
     "minimum-stability": "stable",
     "stability-flags": {
         "codeception/codeception": 20,
-        "codeception/lib-web": 20
+        "codeception/lib-web": 20,
+        "scssphp/scssphp": 20
     },
     "prefer-stable": false,
     "prefer-lowest": false,
diff --git a/views/pages/css.php b/views/pages/css.php
index 4c9393f04..cc6b95e0a 100644
--- a/views/pages/css.php
+++ b/views/pages/css.php
@@ -4,6 +4,7 @@
  * @var \app\models\settings\Stylesheet $stylesheetSettings
  */
 
+use app\components\CssCompiler;
 use ScssPhp\ScssPhp\OutputStyle;
 
 $css = '
@@ -92,8 +93,5 @@
 }
 ';
 
-
-$scss = new \app\components\CssCompiler();
-$scss->addImportPath(Yii::$app->basePath . '/web/css/');
-$scss->setOutputStyle(OutputStyle::COMPRESSED);
-echo $scss->compileString($css)->getCss();
+$compiler = new CssCompiler();
+echo $compiler->compileCss($css);