diff --git a/composer.json b/composer.json
index e6f440a..7034822 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         }
     ],
     "require": {
-        "php": "^5.4 | ^7 | ^8",
+        "php": "^5.4 | ^7 | ~8.0.0 | ~8.1.0",
         "ext-json": "*",
         "paragonie/random_compat": "^1 | ^2 | ^9.99.99",
         "symfony/polyfill-ctype": "^1.8"