diff --git a/acf.php b/acf.php
index 950a10c..9a649b4 100644
--- a/acf.php
+++ b/acf.php
@@ -50,6 +50,7 @@ function ($pre, $url, $request_args) {
 	/**
 	 * The main ACF class
 	 */
+        #[AllowDynamicProperties]
 	class ACF
 	{
 		/**