diff --git a/simple-glitchtip.php b/simple-glitchtip.php
index 8101b2d..2200165 100644
--- a/simple-glitchtip.php
+++ b/simple-glitchtip.php
@@ -45,15 +45,21 @@ add_action('admin_init', 'sg_register_settings');
 
 // Initialize error handler
 function sg_initialize_error_handler($dsn) {
-    if (!class_exists('Raven_Client')) {
-        require_once plugin_dir_path(__FILE__) . 'raven-client.phar';
+    if (!class_exists('Sentry\State\Hub')) {
+        require_once plugin_dir_path(__FILE__) . 'sentry.phar';
     }
 
-    $client = new Raven_Client($dsn);
-    $error_handler = new Raven_ErrorHandler($client);
-    $error_handler->registerExceptionHandler();
-    $error_handler->registerErrorHandler();
-    $error_handler->registerShutdownFunction();
+    Sentry\init(['dsn' => $dsn]);
+
+    function handle_exception($exception) {
+        Sentry\captureException($exception);
+    }
+    set_exception_handler('handle_exception');
+
+    function handle_error($errno, $errstr, $errfile, $errline) {
+        Sentry\captureMessage("$errstr in $errfile on line $errline");
+    }
+    set_error_handler('handle_error');
 }
 
 // Initialize the plugin