diff --git a/composer.json b/composer.json
index 876cec6..2706872 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,8 @@
         "php": ">=8.0",
         "symfony/form": "~5.0 || ~6.0",
         "symfony/console": "~5.0 || ~6.0",
-        "symfony/translation": "~5.0 || ~6.0"
+        "symfony/translation": "~5.0 || ~6.0",
+        "symfony/intl": "^6.1"
     },
     "require-dev": {
         "beberlei/assert": "~2.1",