diff --git a/composer.json b/composer.json
index 1300f98..4be042a 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-mbstring": "*",
         "dragonmantank/cron-expression": "^2.3 || ^3.0"
     },
     "require-dev": {