diff --git a/composer.json b/composer.json
index 81112ad..888358a 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
   "require": {
     "guzzlehttp/guzzle": "^7.0.1",
     "php": ">=7.2.5",
-    "psr/http-message": "~1.0",
+    "psr/http-message": "^1.0 || ^2.0",
     "ext-json": "*"
   },
   "require-dev": {