diff --git a/src/Enums/ValidationRule.php b/src/Enums/ValidationRule.php
index 7713daeb..661485dc 100644
--- a/src/Enums/ValidationRule.php
+++ b/src/Enums/ValidationRule.php
@@ -130,7 +130,8 @@ public function allowedParameterCount(): int
             self::SIZE, self::MAX, self::MIN, self::DIGITS, self::DATE_EQUALS,
             self::DATE_FORMAT, self::AFTER, self::AFTER_OR_EQUAL, self::BEFORE,
             self::BEFORE_OR_EQUAL, self::EXISTS, self::UNIQUE, self::GT, self::GTE,
-            self::LT, self::LTE, self::MAX_DIGITS, self::MIN_DIGITS, self::MULTIPLE_OF => 1,
+            self::LT, self::LTE, self::MAX_DIGITS, self::MIN_DIGITS, self::MULTIPLE_OF,
+            self::REGEX, self::NOT_REGEX => 1,
 
             // Default case for any unspecified rules
             default => 0
diff --git a/src/FieldTypeSystem/Definitions/ColorPickerFieldType.php b/src/FieldTypeSystem/Definitions/ColorPickerFieldType.php
index 00d68b01..099cc515 100644
--- a/src/FieldTypeSystem/Definitions/ColorPickerFieldType.php
+++ b/src/FieldTypeSystem/Definitions/ColorPickerFieldType.php
@@ -29,6 +29,7 @@ public function configure(): FieldSchema
             ->priority(90)
             ->availableValidationRules([
                 ValidationRule::REQUIRED,
+                ValidationRule::REGEX,
                 ValidationRule::STARTS_WITH,
             ]);
     }
diff --git a/src/FieldTypeSystem/Definitions/LinkFieldType.php b/src/FieldTypeSystem/Definitions/LinkFieldType.php
index 1f62e496..a4ae55d0 100644
--- a/src/FieldTypeSystem/Definitions/LinkFieldType.php
+++ b/src/FieldTypeSystem/Definitions/LinkFieldType.php
@@ -30,6 +30,7 @@ public function configure(): FieldSchema
             ->availableValidationRules([
                 ValidationRule::REQUIRED,
                 ValidationRule::URL,
+                ValidationRule::REGEX,
                 ValidationRule::STARTS_WITH,
             ]);
     }
diff --git a/src/FieldTypeSystem/Definitions/MarkdownEditorFieldType.php b/src/FieldTypeSystem/Definitions/MarkdownEditorFieldType.php
index e942aa5a..f9b2c667 100644
--- a/src/FieldTypeSystem/Definitions/MarkdownEditorFieldType.php
+++ b/src/FieldTypeSystem/Definitions/MarkdownEditorFieldType.php
@@ -31,6 +31,7 @@ public function configure(): FieldSchema
                 ValidationRule::REQUIRED,
                 ValidationRule::MIN,
                 ValidationRule::MAX,
+                ValidationRule::REGEX,
             ]);
     }
 }
diff --git a/src/FieldTypeSystem/Definitions/RichEditorFieldType.php b/src/FieldTypeSystem/Definitions/RichEditorFieldType.php
index e39c1420..4e0b8880 100644
--- a/src/FieldTypeSystem/Definitions/RichEditorFieldType.php
+++ b/src/FieldTypeSystem/Definitions/RichEditorFieldType.php
@@ -31,6 +31,7 @@ public function configure(): FieldSchema
                 ValidationRule::REQUIRED,
                 ValidationRule::MIN,
                 ValidationRule::MAX,
+                ValidationRule::REGEX,
             ]);
     }
 }
diff --git a/src/FieldTypeSystem/Definitions/TextFieldType.php b/src/FieldTypeSystem/Definitions/TextFieldType.php
index 5e3b7ced..4b9137d6 100644
--- a/src/FieldTypeSystem/Definitions/TextFieldType.php
+++ b/src/FieldTypeSystem/Definitions/TextFieldType.php
@@ -36,6 +36,7 @@ public function configure(): FieldSchema
                 ValidationRule::ALPHA_NUM,
                 ValidationRule::ALPHA_DASH,
                 ValidationRule::EMAIL,
+                ValidationRule::REGEX,
                 ValidationRule::STARTS_WITH,
                 ValidationRule::ENDS_WITH,
             ]);
diff --git a/src/FieldTypeSystem/Definitions/TextareaFieldType.php b/src/FieldTypeSystem/Definitions/TextareaFieldType.php
index 886c8e1b..228baadc 100644
--- a/src/FieldTypeSystem/Definitions/TextareaFieldType.php
+++ b/src/FieldTypeSystem/Definitions/TextareaFieldType.php
@@ -31,6 +31,7 @@ public function configure(): FieldSchema
                 ValidationRule::REQUIRED,
                 ValidationRule::MIN,
                 ValidationRule::MAX,
+                ValidationRule::REGEX,
             ]);
     }
 }
diff --git a/src/Filament/Management/Pages/CustomFieldsManagementPage.php b/src/Filament/Management/Pages/CustomFieldsManagementPage.php
index 50da4299..b6df88b5 100644
--- a/src/Filament/Management/Pages/CustomFieldsManagementPage.php
+++ b/src/Filament/Management/Pages/CustomFieldsManagementPage.php
@@ -29,7 +29,7 @@
 
 class CustomFieldsManagementPage extends Page
 {
-    protected static string|BackedEnum|null $navigationIcon = 'heroicon-m-document-text';
+    protected static string|\BackedEnum|null $navigationIcon = 'heroicon-m-document-text';
 
     protected string $view = 'custom-fields::filament.pages.custom-fields-management';
 
diff --git a/tests/Datasets/ValidationRulesDataset.php b/tests/Datasets/ValidationRulesDataset.php
index 29e8ce09..ae4f46b2 100644
--- a/tests/Datasets/ValidationRulesDataset.php
+++ b/tests/Datasets/ValidationRulesDataset.php
@@ -536,6 +536,16 @@
         'allowedRules' => ['required', 'min', 'max', 'between', 'regex', 'alpha', 'alpha_num', 'alpha_dash', 'string', 'email', 'starts_with'],
         'disallowedRules' => ['numeric', 'integer', 'boolean', 'array', 'date'],
     ],
+    'textarea_field_rules' => [
+        'fieldType' => 'textarea',
+        'allowedRules' => ['required', 'min', 'max', 'regex'],
+        'disallowedRules' => ['numeric', 'integer', 'boolean', 'array', 'date', 'email'],
+    ],
+    'markdown_editor_field_rules' => [
+        'fieldType' => 'markdown-editor',
+        'allowedRules' => ['required', 'min', 'max', 'regex'],
+        'disallowedRules' => ['numeric', 'integer', 'boolean', 'array', 'date', 'email'],
+    ],
     'number_field_rules' => [
         'fieldType' => 'number',
         'allowedRules' => ['required', 'numeric', 'min', 'max', 'between', 'integer', 'starts_with'],
@@ -573,12 +583,17 @@
     ],
     'rich-editor_field_rules' => [
         'fieldType' => 'rich-editor',
-        'allowedRules' => ['required', 'string', 'min', 'max', 'between', 'starts_with'],
+        'allowedRules' => ['required', 'string', 'min', 'max', 'between', 'regex', 'starts_with'],
         'disallowedRules' => ['numeric', 'alpha', 'boolean', 'array', 'date', 'integer'],
     ],
     'url_field_rules' => [
         'fieldType' => 'link',
-        'allowedRules' => ['required', 'url', 'starts_with'],
+        'allowedRules' => ['required', 'url', 'regex', 'starts_with'],
         'disallowedRules' => ['numeric', 'alpha', 'boolean', 'array', 'date', 'integer'],
     ],
+    'color_picker_field_rules' => [
+        'fieldType' => 'color-picker',
+        'allowedRules' => ['required', 'regex', 'starts_with'],
+        'disallowedRules' => ['numeric', 'integer', 'boolean', 'array', 'date', 'email'],
+    ],
 ]);
diff --git a/tests/Fixtures/Resources/Posts/PostResource.php b/tests/Fixtures/Resources/Posts/PostResource.php
index 3fa1d362..3e8c3f7e 100644
--- a/tests/Fixtures/Resources/Posts/PostResource.php
+++ b/tests/Fixtures/Resources/Posts/PostResource.php
@@ -28,7 +28,7 @@ class PostResource extends Resource
 
     protected static string|UnitEnum|null $navigationGroup = 'Blog';
 
-    protected static string|BackedEnum|null $navigationIcon = Heroicon::OutlinedDocumentText;
+    protected static string|\BackedEnum|null $navigationIcon = Heroicon::OutlinedDocumentText;
 
     protected static ?string $recordTitleAttribute = 'title';