diff --git a/composer.json b/composer.json
index e0329f3f..1f8434e7 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     "ext-soap": "*",
     "moneyphp/money": "^3.0 || ^4.0",
     "myclabs/php-enum": "^1.5",
-    "psr/http-message": "^1.0",
+    "psr/http-message": "^1.0 || ^2.0",
     "psr/log": "^1.0 || ^2.0 || ^3.0",
     "webmozart/assert": "^1.2"
   },