diff --git a/composer.json b/composer.json
index 697b1d7b..3d760da4 100644
--- a/composer.json
+++ b/composer.json
@@ -84,11 +84,12 @@
         "symfony/yaml": "6.4.*",
         "tecnickcom/tc-lib-barcode": "^2.1.4",
         "twig/cssinliner-extra": "^3.0",
-        "twig/extra-bundle": "^3.0",
-        "twig/html-extra": "^3.0",
+        "twig/extra-bundle": "^3.8",
+        "twig/html-extra": "^3.8",
         "twig/inky-extra": "^3.0",
-        "twig/intl-extra": "^3.0",
-        "twig/markdown-extra": "^3.0",
+        "twig/intl-extra": "^3.8",
+        "twig/markdown-extra": "^3.8",
+        "twig/string-extra": "^3.8",
         "web-auth/webauthn-symfony-bundle": "^4.0.0",
         "webmozart/assert": "^1.4"
     },
diff --git a/composer.lock b/composer.lock
index 9829f95b..cf6a6fa9 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": "d262b7af88fd38fff57c486ce7f61cbe",
+    "content-hash": "c92c91e2ea0afe0c366c423a217bd0cb",
     "packages": [
         {
             "name": "api-platform/core",
@@ -13801,6 +13801,73 @@
             ],
             "time": "2023-11-21T14:02:01+00:00"
         },
+        {
+            "name": "twig/string-extra",
+            "version": "v3.8.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/twigphp/string-extra.git",
+                "reference": "b0c9037d96baff79abe368dc092a59b726517548"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/twigphp/string-extra/zipball/b0c9037d96baff79abe368dc092a59b726517548",
+                "reference": "b0c9037d96baff79abe368dc092a59b726517548",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5",
+                "symfony/string": "^5.4|^6.0|^7.0",
+                "symfony/translation-contracts": "^1.1|^2|^3",
+                "twig/twig": "^3.0"
+            },
+            "require-dev": {
+                "symfony/phpunit-bridge": "^6.4|^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Twig\\Extra\\String\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com",
+                    "homepage": "http://fabien.potencier.org",
+                    "role": "Lead Developer"
+                }
+            ],
+            "description": "A Twig extension for Symfony String",
+            "homepage": "https://twig.symfony.com",
+            "keywords": [
+                "html",
+                "string",
+                "twig",
+                "unicode"
+            ],
+            "support": {
+                "source": "https://github.com/twigphp/string-extra/tree/v3.8.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/twig/twig",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-11-21T14:02:01+00:00"
+        },
         {
             "name": "twig/twig",
             "version": "v3.8.0",
diff --git a/src/Services/LabelSystem/SandboxedTwigProvider.php b/src/Services/LabelSystem/SandboxedTwigProvider.php
index a6a54118..bf152150 100644
--- a/src/Services/LabelSystem/SandboxedTwigProvider.php
+++ b/src/Services/LabelSystem/SandboxedTwigProvider.php
@@ -66,6 +66,8 @@ use InvalidArgumentException;
 use Twig\Environment;
 use Twig\Extension\SandboxExtension;
 use Twig\Extra\Intl\IntlExtension;
+use Twig\Extra\Markdown\MarkdownExtension;
+use Twig\Extra\String\StringExtension;
 use Twig\Loader\ArrayLoader;
 use Twig\Sandbox\SecurityPolicyInterface;
 
@@ -76,15 +78,20 @@ final class SandboxedTwigProvider
 {
     private const ALLOWED_TAGS = ['apply', 'autoescape', 'do', 'for', 'if', 'set', 'verbatim', 'with'];
     private const ALLOWED_FILTERS = ['abs', 'batch', 'capitalize', 'column', 'country_name',
-        'currency_name', 'currency_symbol', 'date', 'date_modify', 'default', 'escape', 'filter', 'first', 'format',
-        'format_currency', 'format_date', 'format_datetime', 'format_number', 'format_time', 'join', 'keys',
-        'language_name', 'last', 'length', 'locale_name', 'lower', 'map', 'merge', 'nl2br', 'raw', 'number_format',
-        'reduce', 'replace', 'reverse', 'slice', 'sort', 'spaceless', 'split', 'striptags', 'timezone_name', 'title',
-        'trim', 'upper', 'url_encode',
+        'currency_name', 'currency_symbol', 'date', 'date_modify', 'data_uri', 'default', 'escape', 'filter', 'first', 'format',
+        'format_currency', 'format_date', 'format_datetime', 'format_number', 'format_time', 'html_to_markdown', 'join', 'keys',
+        'language_name', 'last', 'length', 'locale_name', 'lower', 'map', 'markdown_to_html', 'merge', 'nl2br', 'raw', 'number_format',
+        'reduce', 'replace', 'reverse', 'round', 'slice', 'slug', 'sort', 'spaceless', 'split', 'striptags', 'timezone_name', 'title',
+        'trim', 'u', 'upper', 'url_encode',
         //Part-DB specific filters:
-        'moneyFormat', 'siFormat', 'amountFormat', ];
+        'moneyFormat', 'siFormat', 'amountFormat',
 
-    private const ALLOWED_FUNCTIONS = ['date', 'html_classes', 'max', 'min', 'random', 'range'];
+
+        ];
+
+    private const ALLOWED_FUNCTIONS = ['country_names', 'country_timezones', 'currency_names', 'cycle',
+        'date', 'html_classes', 'language_names', 'locale_names', 'max', 'min', 'random', 'range', 'script_names',
+        'template_from_string', 'timezone_names'];
 
     private const ALLOWED_METHODS = [
         NamedElementInterface::class => ['getName'],
@@ -139,6 +146,8 @@ final class SandboxedTwigProvider
 
         //Add IntlExtension
         $twig->addExtension(new IntlExtension());
+        $twig->addExtension(new MarkdownExtension());
+        $twig->addExtension(new StringExtension());
 
         //Add Part-DB specific extension
         $twig->addExtension($this->appExtension);