diff --git a/core/lib/Drupal/Core/Field/FieldDefinition.php b/core/lib/Drupal/Core/Field/FieldDefinition.php
index 1b93196..51b6338 100644
--- a/core/lib/Drupal/Core/Field/FieldDefinition.php
+++ b/core/lib/Drupal/Core/Field/FieldDefinition.php
@@ -258,7 +258,7 @@ protected function getFieldItemClass() {
       return $class;
     }
     else {
-      $type_definition = \Drupal::typedData()
+      $type_definition = \Drupal::typedDataManager()
         ->getDefinition($this->itemDefinition->getDataType());
       return $type_definition['class'];
     }
diff --git a/core/modules/field/lib/Drupal/field/Entity/Field.php b/core/modules/field/lib/Drupal/field/Entity/Field.php
index d63b988..025f2b1 100644
--- a/core/modules/field/lib/Drupal/field/Entity/Field.php
+++ b/core/modules/field/lib/Drupal/field/Entity/Field.php
@@ -810,7 +810,7 @@ protected function getFieldItemClass() {
       return $class;
     }
     else {
-      $type_definition = \Drupal::typedData()
+      $type_definition = \Drupal::typedDataManager()
         ->getDefinition($this->getItemDefinition()->getDataType());
       return $type_definition['class'];
     }