diff --git a/composer.json b/composer.json
index 5a1416a..0781b85 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     ],
     "require": {
         "php": "^5.6|^7.0",
-        "nesbot/carbon": "^1.21",
+        "nesbot/carbon": "^1.21 || ^2.0 ",
         "laravel/socialite": "~3.0",
         "laravel/framework": "~5.3.30|~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0"
     },