diff --git a/composer.json b/composer.json
index b3eb1852..40b89084 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
         "psr/container": "^1.1.2 || ^2.0.2",
         "psr/event-dispatcher": "^1.0",
         "psr/http-factory": "^1.0.2",
-        "psr/http-message": "^1.1.0",
+        "psr/http-message": "^2.0.0",
         "psr/http-server-handler": "^1.0.2",
         "psr/http-server-middleware": "^1.0.1",
         "psr/log": "^1.1 || ^2.0 || ^3.0"