diff --git a/composer.json b/composer.json
index 18fe9f9..17731dd 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
         }
     ],
     "require": {
-        "php": ">=7.0.0",
+        "php": "^7.3 || ^8.0",
         "psr/http-message": "^1.0",
         "nyholm/psr7": "^1.0",
         "nyholm/psr7-server": "^1.0",