diff --git a/composer.json b/composer.json
index fefa244..b652c80 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
 	"description": "A collection of PHP classes for managing barcodes.",
 	"license": "GPL-3.0+",
 	"require": {
-		"php": "^5.0 || ^7.0"
+		"php": "^5.0 || ^7.0" || ^8.0"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^4.8"