diff --git a/composer.json b/composer.json
index 0f6dd38..41d500b 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     "require": {
         "php": "^7.2 || ^8",
         "ext-json": "*",
-        "brick/math": "^0.8",
+        "brick/math": "^0.8 || ^0.9",
         "ramsey/collection": "^1.0",
         "symfony/polyfill-ctype": "^1.8"
     },