diff --git a/composer.json b/composer.json
index d084bf0..8e59aeb 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
         "ext-curl": "*",
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
-        "psr/http-message": "^1.0"
+        "psr/http-message": "^2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "7.5.20|9.5.0",