diff --git a/composer.json b/composer.json
index f3b00da..d2af64e 100644
--- a/composer.json
+++ b/composer.json
@@ -23,12 +23,12 @@
     "require": {
         "php": "^7.1.3",
         "ext-json": "*",
-        "illuminate/filesystem": "^5.8",
-        "illuminate/support": "^5.8",
-        "illuminate/console": "^5.8"
+        "illuminate/filesystem": "^5.8|^6",
+        "illuminate/support": "^5.8|^6",
+        "illuminate/console": "^5.8|^6"
     },
     "require-dev": {
-        "phpunit/phpunit": "~5.7|~6.5|~7.5"
+        "phpunit/phpunit": "^8.0"
     },
     "autoload": {
         "files": [