diff --git a/composer.json b/composer.json
index 8ac0ab3..5ecb11b 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     },
     "require-dev": {
         "jaschilz/php-coverage-badger": "^2.0",
-        "nesbot/carbon": "^2.0",
+        "nesbot/carbon": "^2.0|^3.0",
         "phpstan/extension-installer": "^1.0",
         "phpstan/phpstan": "^1.0",
         "phpunit/phpunit": "^7.5|^8.0|^9.0",