diff --git a/composer.json b/composer.json
index e7d5ec59..11c5997f 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "sebastian/diff": "*"
     },
     "require": {
-        "php": "^7.1"
+        "php": "^7.3 || ^8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.5 || ^8.0",