diff --git a/composer.json b/composer.json
index efdb49182..1ee4195f0 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,7 @@
         "symfony/yaml": "^2.7",
         "s9e/text-formatter": "^0.8.1",
         "tobscure/json-api": "^0.3.0",
-        "zendframework/zend-diactoros": "^1.1",
+        "zendframework/zend-diactoros": "^1.6",
         "zendframework/zend-stratigility": "^1.3"
     },
     "require-dev": {