diff --git a/composer.json b/composer.json
index 08e74e0..fc4eeee 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
   "name": "aitoc/core",
   "description": "Core extension by Aitoc",
   "require": {
-    "php": "~5.6.5|7.0.2|7.0.4|~7.0.6|~7.0.13|~7.1.0|~7.2.0|~7.3.0|^7.4"
+    "php": "~5.6.5|7.0.2|7.0.4|~7.0.6|~7.0.13|~7.1.0|~7.2.0|~7.3.0|^7.4|^8"
   },
   "type": "magento2-module",
   "license": [