diff --git a/composer.json b/composer.json
index ccde504..abf042e 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "phpstan/phpstan": "^1.0",
         "phpstan/phpstan-phpunit": "^1.0",
         "phpunit/phpunit": "^9.5",
-        "psr/http-message": "^1.0",
+        "psr/http-message": "^1.0 || ^2.0",
         "etsglobal/php-static-analysis": "^2.0",
         "slevomat/coding-standard": "^7.0",
         "squizlabs/php_codesniffer": "^3.6",