diff --git a/Makefile b/Makefile
index b3ec4b6..faaf034 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ PSALM_BIN = vendor-bin/psalm/vendor/vimeo/psalm/psalm
 PSALM = $(PSALM_BIN) --no-cache
 
 PHP_CS_FIXER_BIN = vendor-bin/php-cs-fixer/vendor/friendsofphp/php-cs-fixer/php-cs-fixer
-PHP_CS_FIXER = $(PHP_CS_FIXER_BIN) fix --ansi --verbose --config=.php-cs-fixer.php
+PHP_CS_FIXER = PHP_CS_FIXER_IGNORE_ENV=1 $(PHP_CS_FIXER_BIN) fix --ansi --verbose --config=.php-cs-fixer.php
 
 
 .DEFAULT_GOAL := check
diff --git a/src/Internal/Type/NonEmptyStringType.php b/src/Internal/Type/NonEmptyStringType.php
index 8ada61c..2d82f34 100644
--- a/src/Internal/Type/NonEmptyStringType.php
+++ b/src/Internal/Type/NonEmptyStringType.php
@@ -15,8 +15,8 @@
 
 use Fidry\Console\Input\InvalidInputValueType;
 use Fidry\Console\Internal\InputAssert;
+use function mb_trim;
 use function sprintf;
-use function trim;
 
 /**
  * @implements ScalarType<non-empty-string>
@@ -27,7 +27,7 @@ public function coerceValue(array|bool|string|null $value, string $label): strin
     {
         InputAssert::string($value, $label);
 
-        $trimmedValue = trim($value);
+        $trimmedValue = mb_trim($value);
 
         if ('' === $trimmedValue) {
             throw new InvalidInputValueType(
diff --git a/src/Internal/Type/StringType.php b/src/Internal/Type/StringType.php
index 87e7079..876d052 100644
--- a/src/Internal/Type/StringType.php
+++ b/src/Internal/Type/StringType.php
@@ -14,7 +14,7 @@
 namespace Fidry\Console\Internal\Type;
 
 use Fidry\Console\Internal\InputAssert;
-use function trim;
+use function mb_trim;
 
 /**
  * @implements ScalarType<string>
@@ -25,7 +25,7 @@ public function coerceValue(array|bool|string|null $value, string $label): strin
     {
         InputAssert::string($value, $label);
 
-        return trim($value);
+        return mb_trim($value);
     }
 
     public function getTypeClassNames(): array
diff --git a/vendor-bin/pph-cs-fixer/composer.json b/vendor-bin/pph-cs-fixer/composer.json
new file mode 100644
index 0000000..2c63c08
--- /dev/null
+++ b/vendor-bin/pph-cs-fixer/composer.json
@@ -0,0 +1,2 @@
+{
+}
diff --git a/vendor-bin/pph-cs-fixer/composer.lock b/vendor-bin/pph-cs-fixer/composer.lock
new file mode 100644
index 0000000..b383d88
--- /dev/null
+++ b/vendor-bin/pph-cs-fixer/composer.lock
@@ -0,0 +1,18 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "d751713988987e9331980363e24189ce",
+    "packages": [],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
+}