diff --git a/composer.json b/composer.json
index ebb42bb..4b10046 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
    ],
    "require": {
     "php": ">=7.1.3",
-    "illuminate/support": "~5.6.0|~5.7.0",
+    "illuminate/support": "~5.7.0|~5.8.0",
     "sinergi/browser-detector": "6.1.*"
    },
    "require-dev": {
diff --git a/tests/IdentifyServiceProviderTest.php b/tests/IdentifyServiceProviderTest.php
index 87155c0..7b3f19d 100644
--- a/tests/IdentifyServiceProviderTest.php
+++ b/tests/IdentifyServiceProviderTest.php
@@ -19,7 +19,7 @@ class IdentifyServiceProviderTest extends TestCase
      */
     protected $provider;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
         $this->mockApp = m::mock('\Illuminate\Contracts\Foundation\Application');
diff --git a/tests/IdentifyTest.php b/tests/IdentifyTest.php
index fbf8f81..805a058 100644
--- a/tests/IdentifyTest.php
+++ b/tests/IdentifyTest.php
@@ -15,7 +15,7 @@ class IdentifyTest extends TestCase
      */
     protected $identify;
 
-    protected function setUp()
+    protected function setUp() : void
     {
         parent::setUp();
         $this->identify = new Identify();