diff --git a/composer.json b/composer.json
index 4c1e132..fb04d4c 100755
--- a/composer.json
+++ b/composer.json
@@ -11,11 +11,11 @@
     ],
     "require": {
         "php": "^5.5.9 || ^7.0",
-        "illuminate/support": "5.1.* || 5.2.* || 5.3.* || 5.4.* || 5.5.*"
+        "illuminate/support": "^5.1"
     },
     "require-dev": {
-        "graham-campbell/testbench": "^3.4 || ^4.0",
-        "phpunit/phpunit": "^4.8 || ^5.7 || ^6.3"
+        "graham-campbell/testbench": "^3.4 || ^4.0 || ^5.0",
+        "phpunit/phpunit": "^4.8 || ^5.7 || ^6.3 || ^7.0"
     },
     "autoload": {
         "psr-4": {