diff --git a/composer.json b/composer.json
index 66a1127..d6322fc 100644
--- a/composer.json
+++ b/composer.json
@@ -10,10 +10,11 @@
 		}
 	],
 	"require": {
-		"guzzlehttp/guzzle": "^6.0.0"
+		"php": "^7.2.5 || ^8.0",
+		"guzzlehttp/guzzle": "^7.2.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "4.0.*"
+		"phpunit/phpunit": "^9.0"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/phpunit.xml b/phpunit.xml
index d7e1f24..1088db4 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -7,8 +7,7 @@
          convertNoticesToExceptions="true"
          convertWarningsToExceptions="true"
          processIsolation="false"
-         stopOnFailure="false"
-         syntaxCheck="false">
+         stopOnFailure="false">
     <testsuites>
         <testsuite name="Test Suite">
             <directory suffix=".php">./tests/</directory>
diff --git a/readme.md b/readme.md
index fdac15b..0712503 100644
--- a/readme.md
+++ b/readme.md
@@ -4,14 +4,14 @@ Documentation https://wonde.com/docs/api/1.0/
 
 ## Installation
 
-Requires PHP 5.6.
+Requires PHP 7.2.5+ (including PHP 8.0)
 
 Using Composer:
 
 ```json
 {
   "require": {
-    "wondeltd/php-client": "1.*"
+    "wondeltd/php-client": "3.*"
   }
 }
 ```
diff --git a/src/Client.php b/src/Client.php
index 2bdc531..1cf16b8 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -23,6 +23,11 @@ class Client
      */
     public $meta;
 
+    /**
+     * @var Schools
+     */
+    public $schools;
+
     /**
      * @var string
      */
@@ -31,7 +36,7 @@ class Client
     /**
      * @var string
      */
-    const version = '2.1.2';
+    const version = '3.0.0';
 
     /**
      * Client constructor.
diff --git a/src/Endpoints/BootstrapEndpoint.php b/src/Endpoints/BootstrapEndpoint.php
index ab04b5e..7b97694 100644
--- a/src/Endpoints/BootstrapEndpoint.php
+++ b/src/Endpoints/BootstrapEndpoint.php
@@ -54,23 +54,12 @@ public function __construct($token, $uri = false)
      */
     private function client()
     {
-        if ((float) Client::VERSION >= 6) {
-            return new Client([
-                'headers' => [
-                    'Authorization' => 'Basic ' . base64_encode($this->token . ':'),
-                    'User-Agent'    => 'wonde-php-client-' . \Wonde\Client::version
-                ]
-            ]);
-        } else {
-            return new Client([
-                'defaults' => [
-                    'headers' => [
-                        'Authorization' => 'Basic ' . base64_encode($this->token . ':'),
-                        'User-Agent'    => 'wonde-php-client-' . \Wonde\Client::version
-                    ]
-                ]
-            ]);
-        }
+        return new Client([
+            'headers' => [
+                'Authorization' => 'Basic ' . base64_encode($this->token . ':'),
+                'User-Agent'    => 'wonde-php-client-' . \Wonde\Client::version
+            ]
+        ]);
     }
 
     /**
diff --git a/tests/AssessmentTest.php b/tests/AssessmentTest.php
index f3bbeee..a1d1f58 100644
--- a/tests/AssessmentTest.php
+++ b/tests/AssessmentTest.php
@@ -1,13 +1,14 @@
 <?php
+use PHPUnit\Framework\TestCase;
 
-class AssessmentTest extends PHPUnit_Framework_TestCase
+class AssessmentTest extends TestCase
 {
     /**
      * @var \Wonde\Endpoints\Schools
      */
     public $school;
 
-    public function setUp()
+    public function setUp(): void
     {
         ini_set('memory_limit','3000M');
         $client = new \Wonde\Client(file_get_contents(__DIR__ . '/../.token'));
diff --git a/tests/MiscEndPointsRegionalDomainTest.php b/tests/MiscEndPointsRegionalDomainTest.php
index caad081..2c5a38a 100644
--- a/tests/MiscEndPointsRegionalDomainTest.php
+++ b/tests/MiscEndPointsRegionalDomainTest.php
@@ -1,6 +1,7 @@
 <?php
+use PHPUnit\Framework\TestCase;
 
-class MiscEndPointsRegionalDomainTest extends PHPUnit_Framework_TestCase
+class MiscEndPointsRegionalDomainTest extends TestCase
 {
     /**
      * @var \Wonde\Endpoints\Schools
@@ -16,7 +17,7 @@ class MiscEndPointsRegionalDomainTest extends PHPUnit_Framework_TestCase
      */
     private $client;
 
-    public function setUp()
+    public function setUp(): void
     {
         ini_set('memory_limit', '3000M');
         $this->token    = file_get_contents(__DIR__ . '/../.token');
diff --git a/tests/MiscEndPointsTest.php b/tests/MiscEndPointsTest.php
index 1afc005..3d5509a 100644
--- a/tests/MiscEndPointsTest.php
+++ b/tests/MiscEndPointsTest.php
@@ -1,6 +1,7 @@
 <?php
+use PHPUnit\Framework\TestCase;
 
-class MiscEndPointsTest extends PHPUnit_Framework_TestCase
+class MiscEndPointsTest extends TestCase
 {
     /**
      * @var \Wonde\Endpoints\Schools
@@ -16,7 +17,7 @@ class MiscEndPointsTest extends PHPUnit_Framework_TestCase
      */
     private $client;
 
-    public function setUp()
+    public function setUp(): void
     {
         ini_set('memory_limit', '3000M');
         $this->token    = file_get_contents(__DIR__ . '/../.token');