diff --git a/app/Events/ChangedPiggyBankAmount.php b/app/Events/ChangedPiggyBankAmount.php
index fd3462c5f0..84743f4e91 100644
--- a/app/Events/ChangedPiggyBankAmount.php
+++ b/app/Events/ChangedPiggyBankAmount.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /*
  * ChangedPiggyBankAmount.php
  * Copyright (c) 2022 james@firefly-iii.org
diff --git a/app/Handlers/Events/PiggyBankEventHandler.php b/app/Handlers/Events/PiggyBankEventHandler.php
index 7c97c29b19..ee7ecedc9a 100644
--- a/app/Handlers/Events/PiggyBankEventHandler.php
+++ b/app/Handlers/Events/PiggyBankEventHandler.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /*
  * PiggyBankEventHandler.php
  * Copyright (c) 2022 james@firefly-iii.org