diff --git a/composer.json b/composer.json
index ae3426c..e37d350 100644
--- a/composer.json
+++ b/composer.json
@@ -18,8 +18,8 @@
         "psr/http-message": "^1.0"
     },
     "require-dev": {
-        "illuminate/contracts": "^5.1|^6.0|^7.0",
-        "illuminate/support": "^5.1|^6.0|^7.0",
+        "illuminate/contracts": "^5.1|^6.0|^7.0|^8.0",
+        "illuminate/support": "^5.1|^6.0|^7.0|^8.0",
         "mockery/mockery": "^0.9|^1.0",
         "phpunit/phpunit": "^4.0|^5.0|^6.0|^7.0|^8.0|^9.0"
     },