diff --git a/composer.json b/composer.json
index d12137ae5..eabcb7443 100644
--- a/composer.json
+++ b/composer.json
@@ -48,7 +48,7 @@
         "nikic/fast-route": "^1.3",
         "psr/container": "^1.0 || ^2.0",
         "psr/http-factory": "^1.0",
-        "psr/http-message": "^1.0",
+        "psr/http-message": "^1.1",
         "psr/http-server-handler": "^1.0",
         "psr/http-server-middleware": "^1.0",
         "psr/log": "^1.1 || ^2.0 || ^3.0"