diff --git a/composer.json b/composer.json
index 4661de9..3b1cd5c 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
 	"description": "PHP server-side libraries for Editor",
 	"type": "library",
 	"require": {
-		"php": ">=5.4.0"
+		"php": ">=5.4.0 <8.4"
 	},
 	"keywords": ["DataTables","jQuery","Editor"],
 	"homepage": "https://editor.datatables.net",