diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 7281d6784..893ff3707 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -16,6 +16,10 @@
 Tester\Environment::setupFunctions();
 date_default_timezone_set('Europe/Prague');
 
+if (PHP_VERSION_ID >= 80400) {
+	error_reporting(E_ALL & ~E_DEPRECATED);
+}
+
 
 function getTempDir(): string
 {