diff --git a/.travis.yml b/.travis.yml
index 99292be..ec36ec4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,4 +8,4 @@ before_script:
   - travis_retry composer install --prefer-source --no-interaction
 
 script:
-  - vendor/bin/phpunit
+  - phpunit --bootstrap=vendor/autoload.php tests
diff --git a/composer.json b/composer.json
index b86fb32..d16b60c 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,6 @@
         "laravel/browser-kit-testing": "^2.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~6.0",
         "orchestra/testbench": "~3.0"
     },
     "extra": {