diff --git a/src/Http/Resolvers/HeaderIdentityResolver.php b/src/Http/Resolvers/HeaderIdentityResolver.php
index 3e9fa81..64ade02 100644
--- a/src/Http/Resolvers/HeaderIdentityResolver.php
+++ b/src/Http/Resolvers/HeaderIdentityResolver.php
@@ -11,7 +11,7 @@
 use Sprout\Http\Middleware\TenantRoutes;
 use Sprout\Support\BaseIdentityResolver;
 
-class HeaderIdentityResolver extends BaseIdentityResolver
+final class HeaderIdentityResolver extends BaseIdentityResolver
 {
     private string $header;