diff --git a/src/StringTagField.php b/src/StringTagField.php
index 81abe03..adf42d7 100644
--- a/src/StringTagField.php
+++ b/src/StringTagField.php
@@ -7,13 +7,13 @@
 use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Control\HTTPResponse;
 use SilverStripe\Forms\DropdownField;
-use SilverStripe\Forms\Validator;
 use SilverStripe\Model\List\ArrayList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DataObjectInterface;
 use SilverStripe\Model\List\SS_List;
 use SilverStripe\Model\ArrayData;
 use SilverStripe\View\Requirements;
+use SilverStripe\Core\Validation\FieldValidation\OptionFieldValidator;
 
 /**
  * Provides a tagging interface, storing comma-delimited tags in a DataObject string field.
@@ -26,6 +26,12 @@
  */
 class StringTagField extends DropdownField
 {
+    private static array $field_validators = [
+        // Disable validation as StringTagField is a special case where labels can be the values
+        // rather than the keys always being the values - for instance when creating new tags
+        OptionFieldValidator::class => null,
+    ];
+
     /**
      * @var array
      */
@@ -369,18 +375,6 @@ protected function getTags($term)
         return array_slice(array_values($items ?? []), 0, $this->getLazyLoadItemLimit());
     }
 
-    /**
-     * DropdownField assumes value will be a scalar so we must
-     * override validate. This only applies to Silverstripe 3.2+
-     *
-     * @param Validator $validator
-     * @return bool
-     */
-    public function validate($validator)
-    {
-        return $this->extendValidationResult(true, $validator);
-    }
-
     /**
      * @return bool
      */
diff --git a/src/TagField.php b/src/TagField.php
index 317635c..ba6025d 100644
--- a/src/TagField.php
+++ b/src/TagField.php
@@ -8,7 +8,6 @@
 use SilverStripe\Control\HTTPResponse;
 use SilverStripe\Core\Injector\Injector;
 use SilverStripe\Forms\MultiSelectField;
-use SilverStripe\Forms\Validator;
 use SilverStripe\Model\List\ArrayList;
 use SilverStripe\ORM\DataList;
 use SilverStripe\ORM\DataObject;
@@ -17,6 +16,7 @@
 use SilverStripe\ORM\Relation;
 use SilverStripe\Model\List\SS_List;
 use SilverStripe\Model\ArrayData;
+use SilverStripe\Core\Validation\FieldValidation\MultiOptionFieldValidator;
 
 /**
  * Provides a tagging interface, storing links between tag DataObjects and a parent DataObject.
@@ -26,6 +26,12 @@
  */
 class TagField extends MultiSelectField
 {
+    private static array $field_validators = [
+        // Disable validation as TagField is a special case where labels can be the values
+        // rather than the keys always being the values - for instance when creating new tags
+        MultiOptionFieldValidator::class => null,
+    ];
+
     /**
      * @var array
      */
@@ -563,18 +569,6 @@ protected function getTags($term)
         return array_values($items ?? []);
     }
 
-    /**
-     * DropdownField assumes value will be a scalar so we must
-     * override validate. This only applies to Silverstripe 3.2+
-     *
-     * @param Validator $validator
-     * @return bool
-     */
-    public function validate($validator)
-    {
-        return $this->extendValidationResult(true, $validator);
-    }
-
     /**
      * Converts the field to a readonly variant.
      *