diff --git a/.travis.yml b/.travis.yml
index da7c450..d7337e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ before_script:
   - travis_retry composer require "illuminate/support:${ILLUMINATE_VERSION}"
 
 script:
-    - composer test
+  - phpunit
 
 matrix:
   include:
diff --git a/composer.json b/composer.json
index 4188ffe..d755c49 100644
--- a/composer.json
+++ b/composer.json
@@ -17,12 +17,12 @@
         }
     ],
     "require": {
-        "illuminate/support": ">=5.4",
-        "php" : "7.*"
+        "illuminate/support": "~5.4.0|~5.5.0|~5.6.0",
+        "php" : "^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit" : ">=5.0",
-        "orchestra/testbench": "3.*"
+        "phpunit/phpunit": "^6.5 || ^7.0",
+        "orchestra/testbench": "~3.4.0|~3.5.0|~3.6.0"
     },
     "autoload": {
         "psr-4": {
@@ -35,7 +35,7 @@
         }
     },
     "scripts": {
-        "test": "phpunit"
+        "test": "vendor/bin/phpunit"
     },
     "extra": {
         "branch-alias": {