diff --git a/src/Forms/FieldsValidator.php b/src/Forms/FieldsValidator.php
index 0de96225fdf..81a2ee9df0f 100644
--- a/src/Forms/FieldsValidator.php
+++ b/src/Forms/FieldsValidator.php
@@ -2,11 +2,22 @@
 
 namespace SilverStripe\Forms;
 
+use SilverStripe\Dev\Deprecation;
+
 /**
  * Validates the internal state of all fields in the form.
  */
 class FieldsValidator extends Validator
 {
+    /**
+     * @deprecated 5.4.0 Will be renamed to SilverStripe\Forms\FormFieldsValidator
+     */
+    public function __construct()
+    {
+        Deprecation::noticeWithNoReplacment('5.4.0', 'Will be renamed to SilverStripe\\Forms\\FieldsValidator', Deprecation::SCOPE_CLASS);
+        parent::__construct();
+    }
+
     public function php($data): bool
     {
         $valid = true;
diff --git a/src/Forms/RequiredFields.php b/src/Forms/RequiredFields.php
index 3f0e055c0b7..4d473b232ba 100644
--- a/src/Forms/RequiredFields.php
+++ b/src/Forms/RequiredFields.php
@@ -3,6 +3,7 @@
 namespace SilverStripe\Forms;
 
 use SilverStripe\ORM\ArrayLib;
+use SilverStripe\Dev\Deprecation;
 
 /**
  * Required Fields allows you to set which fields need to be present before
@@ -25,9 +26,12 @@ class RequiredFields extends Validator
     /**
      * Pass each field to be validated as a separate argument to the constructor
      * of this object. (an array of elements are ok).
+     *
+     * @deprecated 5.4.0 Will be renamed to SilverStripe\Forms\RequiredFieldsValidator
      */
     public function __construct()
     {
+        Deprecation::noticeWithNoReplacment('5.4.0', 'Will be renamed to SilverStripe\\Forms\\RequiredFieldsValidator', Deprecation::SCOPE_CLASS);
         $required = func_get_args();
         if (isset($required[0]) && is_array($required[0])) {
             $required = $required[0];