diff --git a/composer.json b/composer.json
index 49f4490..d1bbdde 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     ],
     "require": {
         "php": ">=7.0.0",
-        "psr/http-message": "^1.0"
+        "psr/http-message": "^1.0 || ^2.0"
     },
     "autoload": {
         "psr-4": {