diff --git a/web.php b/web.php
index b026a37..c0d3593 100644
--- a/web.php
+++ b/web.php
@@ -98,22 +98,12 @@ Container::$sessionHandler = new DatabaseSessionHandler(
 session_set_save_handler(Container::$sessionHandler, true);
 session_start([
     'gc_probability' => 0, // old sessions are deleted by MaintainDatabaseCommand
-    'cookie_lifetime' => 604800,
+    'cookie_lifetime' => 0,
     'cookie_path' => '/',
     'cookie_httponly' => true,
     'cookie_samesite' => 'Lax'
 ]);
 
-if (isset($_COOKIE[session_name()])) {
-    // extend session cookie lifetime is cookie already exists
-    setcookie(session_name(), session_id(), [
-        'expires' => time() + 604800,
-        'path' => '/',
-        'httponly' => true,
-        'samesite' => 'Lax'
-    ]);
-}
-
 Container::$request = new Request(
     $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'],
     $_GET,