diff --git a/composer.json b/composer.json
index 57ed774..1477281 100644
--- a/composer.json
+++ b/composer.json
@@ -23,6 +23,7 @@
         "dropbox"
     ],
     "require": {
+        "php": "^5.6 || ^7.0 || ^8.0",
         "league/oauth2-client": "^2.0"
     },
     "require-dev": {
@@ -31,7 +32,6 @@
         "phpunit/phpunit": "^5.7 || ^6.0 || ^9.3",
         "squizlabs/php_codesniffer": "^2.3 || ^3.0"
     },
-
     "autoload": {
         "psr-4": {
             "Stevenmaguire\\OAuth2\\Client\\": "src/"