diff --git a/README.md b/README.md
index 779250b..b2d7d52 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Adds optimistic locking feature to Eloquent models.
 composer require reshadman/laravel-optimistic-locking
 ```
 
-> This package supports Laravel 5.5.*,  5.6.*, 5.7.* and 5.8.*.
+> This package supports Laravel 5.5.*,  5.6.*, 5.7.*, 5.8.*, 6.* and 7.*.
 
 ## Usage
 
diff --git a/composer.json b/composer.json
index 6d3b737..6de210c 100644
--- a/composer.json
+++ b/composer.json
@@ -11,14 +11,14 @@
     ],
     "require": {
         "php": "^7.1",
-        "illuminate/database": "~5.5.0|~5.6.0|~5.7.0|~5.8.0",
-        "illuminate/support": "~5.5.0|~5.6.0|~5.7.0|~5.8.0"
+        "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"
     },
     "require-dev": {
         "ext-pdo_sqlite": "*",
         "mockery/mockery": "^1.0.0",
-        "orchestra/testbench": "~3.5.0|~3.6.0",
-        "phpunit/phpunit" : "^7.0"
+        "orchestra/testbench": "~3.5.0|~3.6.0|~3.8.0|^4.0|^5.0",
+        "phpunit/phpunit" : "^7.0|^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 33fd4e8..896ca21 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -7,7 +7,7 @@
 
 class TestCase extends Orchestra
 {
-    public function setUp()
+    protected function setUp() : void
     {
         parent::setUp();