diff --git a/composer.json b/composer.json
index 82913b9..aed6a53 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     "require": {
         "php": "^8.1",
         "nyholm/psr7": "^1.3",
-        "psr/http-message": "^1.1",
+        "psr/http-message": "^2.0",
         "psr/http-server-handler": "^1.0",
         "psr/http-server-middleware": "^1.0",
         "yiisoft/assets": "^4.0|^5.0",