diff --git a/composer.json b/composer.json
index 790840e..7eebb0f 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
         "guzzlehttp/guzzle": "^7.8",
         "lcobucci/jwt": "^4.3",
         "league/oauth2-server": "^8.5",
-        "nesbot/carbon": "^2.72",
+        "nesbot/carbon": "^2.72 || ^3.0",
         "nyholm/psr7": "^1.8",
         "phpseclib/phpseclib": "^3.0.34",
         "psr/cache": "^2.0 || ^3.0",