diff --git a/app/Models/CustomField.php b/app/Models/CustomField.php
index 6dc9aebdb7..6027aa3473 100644
--- a/app/Models/CustomField.php
+++ b/app/Models/CustomField.php
@@ -338,7 +338,7 @@ class CustomField extends Model
         $id = $this->id ? $this->id : 'xx';
 
         if (! function_exists('transliterator_transliterate')) {
-            $long_slug = '_snipeit_'.str_slug(\Patchwork\Utf8::utf8_encode(trim($name)), '_');
+            $long_slug = '_snipeit_'.str_slug(\Polyfill\Mbstring::mb_convert_encoding(trim($name)), '_');
         } else {
             $long_slug = '_snipeit_'.Utf8Slugger::slugify($name, '_');
         }
diff --git a/composer.json b/composer.json
index e98c30cb08..4f78d8ed36 100644
--- a/composer.json
+++ b/composer.json
@@ -61,7 +61,7 @@
     "nunomaduro/collision": "^5.4",
     "onelogin/php-saml": "^3.4",
     "paragonie/constant_time_encoding": "^2.3",
-    "patchwork/utf8": "^1.3",
+    "symfony/polyfill-mbstring": "^1.22",
     "phpdocumentor/reflection-docblock": "^5.1",
     "phpspec/prophecy": "^1.10",
     "pragmarx/google2fa-laravel": "^1.3",