diff --git a/src/BladeServiceProvider.php b/src/BladeServiceProvider.php
index 1d6f13e..dbdc9b5 100644
--- a/src/BladeServiceProvider.php
+++ b/src/BladeServiceProvider.php
@@ -41,7 +41,7 @@ protected function register()
                         $snakeMethod = Str::snake($method);
                         $directive = \strtolower($namespace).'_'.$snakeMethod;
 
-                        $bladeCompiler->directive($directive, function ($expression) use ($namespace, $method) {
+                        $bladeCompiler->directive($directive, static function ($expression) use ($namespace, $method) {
                             return "<?php echo $namespace::$method($expression); ?>";
                         });
                     }
diff --git a/src/HtmlServiceProvider.php b/src/HtmlServiceProvider.php
index 49890f0..52ffc81 100755
--- a/src/HtmlServiceProvider.php
+++ b/src/HtmlServiceProvider.php
@@ -29,7 +29,7 @@ public function register()
      */
     protected function registerHtmlBuilder(): void
     {
-        $this->app->singleton('html', function ($app) {
+        $this->app->singleton('html', static function ($app) {
             return new HtmlBuilder(
                 $app->make('url'), $app->make('view')
             );
@@ -43,7 +43,7 @@ protected function registerHtmlBuilder(): void
      */
     protected function registerFormBuilder(): void
     {
-        $this->app->singleton('form', function ($app) {
+        $this->app->singleton('form', static function ($app) {
             return (new FormBuilder(
                 $app->make('html'), $app->make('url'), $app->make('view'), $app->make('request')
             ))->setSessionStore($app->make('session.store'));