diff --git a/README.md b/README.md
index 23be4b0..637d732 100644
--- a/README.md
+++ b/README.md
@@ -102,7 +102,7 @@ $twilio->call('+18085551212', function ($message) {
 });
 ```
 
-Access the configured `\Services_Twilio` object:
+Access the configured `Twilio\Rest\Client` object:
 
 ```php
 $sdk = $twilio->getTwilio();
@@ -116,7 +116,7 @@ $sdk = Twilio::getTwilio();
 
 ##### Pass as many optional parameters as you want
 
-If you want to pass on extra optional parameters to the `messages->sendMessage(...)` method [from the Twilio SDK](https://twilio-php.readthedocs.io/en/latest/api/rest.html#Services_Twilio_Rest_Messages::sendMessage), you can do so
+If you want to pass on extra optional parameters to the `messages->sendMessage(...)` method [from the Twilio SDK](https://www.twilio.com/docs/api/messaging/send-messages), you can do so
 by adding to the `message` method. All arguments are passed on, and the `from` field is prepended from configuration.
 
 ```php
@@ -124,7 +124,7 @@ $twilio->message($to, $message, $mediaUrls, $params);
 // passes all these arguments on.
 ```
 
-The same is true for the [call method](https://twilio-php.readthedocs.io/en/latest/api/rest.html#Services_Twilio_Rest_Calls::create).
+The same is true for the [call method](https://www.twilio.com/docs/api/voice/call#post-parameters).
 
 ```php
 $twilio->call($to, $message, $params);
diff --git a/composer.json b/composer.json
index fb7306b..8bf6fee 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "license": "MIT",
     "require": {
         "php": ">=5.5.0",
-        "twilio/sdk":">=3.12.0,<5.0.0"
+        "twilio/sdk":"5.*"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^1.9",
diff --git a/src/Manager.php b/src/Manager.php
index 2460a42..1354c8f 100644
--- a/src/Manager.php
+++ b/src/Manager.php
@@ -38,11 +38,6 @@ public function from($connection)
 
         $settings = $this->settings[$connection];
 
-        if (isset($settings['ssl_verify'])) {
-            return new Twilio($settings['sid'], $settings['token'], $settings['from'], $settings['ssl_verify']);
-        }
-
-        // Let the Twilio constructor decide the default value for ssl_verify
         return new Twilio($settings['sid'], $settings['token'], $settings['from']);
     }
 
diff --git a/src/Twilio.php b/src/Twilio.php
index 9eca882..77c779d 100644
--- a/src/Twilio.php
+++ b/src/Twilio.php
@@ -1,9 +1,8 @@
 <?php
 namespace Aloha\Twilio;
 
-use Services_Twilio;
-use Services_Twilio_TinyHttp;
-use Services_Twilio_Twiml;
+use Twilio\Rest\Client;
+use Twilio\Twiml;
 
 class Twilio implements TwilioInterface
 {
@@ -26,9 +25,9 @@ class Twilio implements TwilioInterface
      * @var bool
      */
     protected $sslVerify;
-    
+
     /**
-     * @var \Services_Twilio
+     * @var \Twilio\Rest\Client
      */
      protected $twilio;
 
@@ -49,63 +48,65 @@ public function __construct($sid, $token, $from, $sslVerify = true)
     /**
      * @param string $to
      * @param string $message
+     * @param array|null $mediaUrls
+     * @param array $params
+     *
+     * @link https://www.twilio.com/docs/api/messaging/send-messages Documentation
      *
-     * @return \Services_Twilio_Rest_Message
+     * @return \Twilio\Rest\Api\V2010\Account\MessageInstance
      */
-    public function message($to, $message)
+    public function message($to, $message, $mediaUrls = null, array $params = [])
     {
-        $arguments = func_get_args();
+        $options['body'] = $message;
 
-        array_unshift($arguments, $this->from);
+        if (!isset($options['from'])) {
+            $options['from'] = $this->from;
+        }
+
+        if (!empty($medialUrls)) {
+            $options['mediaUrl'] = $mediaUrls;
+        }
 
-        return call_user_func_array([$this->getTwilio()->account->messages, 'sendMessage'], $arguments);
+        return $this->getTwilio()->messages->create($to, $options);
     }
 
     /**
      * @param string $to
      * @param string|callable $message
      *
-     * @return \Services_Twilio_Rest_Call
+     * @link https://www.twilio.com/docs/api/voice/making-calls Documentation
+     *
+     * @return \Twilio\Rest\Api\V2010\Account\CallInstance
      */
-    public function call($to, $message)
+    public function call($to, $message, array $params = [])
     {
-        $arguments = func_get_args();
-
-        array_unshift($arguments, $this->from);
-
         if (is_callable($message)) {
             $query = http_build_query([
                 'Twiml' => $this->twiml($message),
             ]);
 
-            $arguments[2] = 'https://twimlets.com/echo?'.$query;
+            $message = 'https://twimlets.com/echo?'.$query;
         }
 
-        return call_user_func_array([$this->getTwilio()->account->calls, 'create'], $arguments);
+        $params['url'] = $message;
+
+        return $this->getTwilio()->calls->create(
+            $to,
+            $this->from,
+            $params
+        );
     }
 
     /**
-     * @return \Services_Twilio
+     * @return \Twilio\Rest\Client
      */
     public function getTwilio()
     {
         if ($this->twilio) {
             return $this->twilio;
         }
-        
-        if (!$this->sslVerify) {
-            $http = new Services_Twilio_TinyHttp(
-                'https://api.twilio.com',
-                [
-                    'curlopts' => [
-                        CURLOPT_SSL_VERIFYPEER => false,
-                        CURLOPT_SSL_VERIFYHOST => 2,
-                    ],
-                ]
-            );
-        }
 
-        return $this->twilio = new Services_Twilio($this->sid, $this->token, null, isset($http) ? $http : null);
+        return $this->twilio = new Client($this->sid, $this->token);
     }
 
     /**
@@ -115,7 +116,7 @@ public function getTwilio()
      */
     private function twiml(callable $callback)
     {
-        $message = new Services_Twilio_Twiml();
+        $message = new Twiml();
 
         call_user_func($callback, $message);
 
diff --git a/src/config/config.php b/src/config/config.php
index 7b38373..0366ece 100644
--- a/src/config/config.php
+++ b/src/config/config.php
@@ -42,18 +42,6 @@
                 */
 
                 'from' => getenv('TWILIO_FROM') ?: '',
-
-                /*
-                |--------------------------------------------------------------------------
-                | Verify Twilio's SSL Certificates
-                |--------------------------------------------------------------------------
-                |
-                | Allows the client to bypass verifying Twilio's SSL certificates.
-                | It is STRONGLY advised to leave this set to true for production environments.
-                |
-                */
-
-                'ssl_verify' => true,
             ],
         ],
     ],