diff --git a/disable_field.module b/disable_field.module
index aaca074..b3fe07d 100755
--- a/disable_field.module
+++ b/disable_field.module
@@ -44,7 +44,7 @@ function disable_field_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $
   // Disable Field.
   $user_roles = \Drupal::currentUser()->getRoles();
   if(($form_entity_type) && ($bundle)){
-    foreach (\Drupal::entityManager()->getFieldDefinitions($form_entity_type, $bundle) as $field_name => $field_definition) {
+    foreach (\Drupal::entityTypeManager()->getFieldDefinitions($form_entity_type, $bundle) as $field_name => $field_definition) {
       if (!empty($field_definition->getTargetBundle())) {
         // Get disable field details.
         $check = disable_field_check_disable($bundle, $field_name, $page, $form_entity_type);