diff --git a/composer.json b/composer.json
index f4ff0eb..ba683c4 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     }
   ],
   "require": {
-    "illuminate/support": "5.5 - 5.8",
+    "illuminate/support": "5.5 - 6.0",
     "php": ">=7.1.3"
   },
   "suggest": {
@@ -30,10 +30,9 @@
   "require-dev": {
       "fzaninotto/faker": "*",
       "mockery/mockery": "*",
-      "orchestra/database": "3.8.*",
-      "orchestra/testbench-browser-kit": "3.8.*",
-      "orchestra/testbench-dusk": "3.8.*",
-      "orchestra/testbench": "3.8.*",
+      "orchestra/testbench-browser-kit": "3.9.x-dev@dev",
+      "orchestra/testbench-dusk": "3.9.x-dev@dev",
+      "orchestra/testbench": "3.9.x-dev@dev",
       "php-coveralls/php-coveralls" : "*",
       "phpmd/phpmd": "*",
       "phpunit/phpunit": "*",
@@ -55,5 +54,6 @@
           }
       }
   },
-  "minimum-stability": "stable"
+  "minimum-stability": "dev",
+  "prefer-stable": true
 }