diff --git a/composer.json b/composer.json
index 15d72e0..5a38f5f 100644
--- a/composer.json
+++ b/composer.json
@@ -26,5 +26,9 @@
         }
     ],
     "minimum-stability": "stable",
-    "require": {}
+    "require": {
+      "php": "^8.0",
+      "ext-pcntl": "*",
+      "ext-sockets": "*"
+    }
 }