diff --git a/composer.json b/composer.json
index 4edbf967..01f07232 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,7 @@
     },
     "suggest": {
         "paragonie/sodium_compat": "Pure PHP implementation of libsodium",
+        "symfony/polyfill-php80": "Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions",
         "szepeviktor/phpstan-wordpress": "WordPress extensions for PHPStan"
     },
     "minimum-stability": "stable",