diff --git a/composer.json b/composer.json
index bb66027..6fc55bd 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
     },
     "prefer-stable": true,
     "require": {
-        "php": "~8.1.0 || ~8.2.0",
+        "php": "~8.1.0 || ~8.2.0 || ~8.4.0",
         "ext-json": "*",
         "ext-pcntl": "*",
         "chimera/bus-tactician": "^1.0.x-dev",