diff --git a/composer.json b/composer.json
index b3b8a60..cc3ee53 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "lcobucci/content-negotiation-middleware": "^3.1",
         "middlewares/negotiation": "^2.1",
         "psr/http-factory": "^1.0.1",
-        "psr/http-message": "^1.0.1",
+        "psr/http-message": "^2.0.0",
         "psr/http-server-handler": "^1.0.1",
         "psr/http-server-middleware": "^1.0.1"
     },