diff --git a/Firewall/ContextListener.php b/Firewall/ContextListener.php
index 9b3c129..06f2c39 100644
--- a/Firewall/ContextListener.php
+++ b/Firewall/ContextListener.php
@@ -301,7 +301,7 @@ private function safelyUnserialize(string $serializedToken)
         $token = null;
         $prevUnserializeHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
         $prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler) {
-            if (__FILE__ === $file) {
+            if (__FILE__ === $file && !\in_array($type, [\E_DEPRECATED, \E_USER_DEPRECATED], true)) {
                 throw new \ErrorException($msg, 0x37313BC, $type, $file, $line);
             }