diff --git a/composer.json b/composer.json
index e9d2020..c742041 100644
--- a/composer.json
+++ b/composer.json
@@ -25,15 +25,15 @@
     }
   },
   "require": {
-    "php" : ">=7.0",
-    "illuminate/database": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0",
-    "illuminate/support": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0"
+    "php" : "^7.1|^8.0",
+    "illuminate/database": "^5.8|^6.0|^7.0|^8.0",
+    "illuminate/support": "^5.8|^6.0|^7.0|^8.0"
   },
   "require-dev": {
-    "friendsofphp/php-cs-fixer": "^2.7",
-    "phpunit/phpcov": "^6.0",
+    "friendsofphp/php-cs-fixer": "^2.16",
+    "phpunit/phpcov": "^6.0|^7.0|^8.0",
     "squizlabs/php_codesniffer": "^3.1",
-    "orchestra/testbench": "~3.8"
+    "orchestra/testbench": "^5.0|^6.3"
   },
   "extra": {
     "laravel": {