diff --git a/models/Session.php b/models/Session.php
index 22e0844..625c522 100644
--- a/models/Session.php
+++ b/models/Session.php
@@ -10,6 +10,9 @@ class Session
 {
 	public static function start()
 	{
+		session_set_cookie_params([
+			'lifetime' => 24 * 3600 * 14 // 14 days
+		]);
 		session_start();
 
 		// Resuming an existing session? Check what we know!