diff --git a/app/Http/Controllers/Auth/ForgotPasswordController.php b/app/Http/Controllers/Auth/ForgotPasswordController.php
index a7322e7e5..8e6ff46fd 100644
--- a/app/Http/Controllers/Auth/ForgotPasswordController.php
+++ b/app/Http/Controllers/Auth/ForgotPasswordController.php
@@ -57,7 +57,7 @@ class ForgotPasswordController extends Controller
          * payloads through.
          */
         $request->validate([
-            'username' => ['required', 'max:255'],
+            'username' => ['required', 'max:255', 'string'],
         ]);
 
         /**