diff --git a/composer.json b/composer.json
index 734cc37..6e86212 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   },
   "require": {
     "filp/whoops": "^1.1 || ^2.0",
-    "zendframework/zend-diactoros": "^1.1.0"
+    "zendframework/zend-diactoros": "^1.1.0 || ^2.0"
   },
   "suggest": {
     "psr/http-server-middleware": "In case you want to use PSR 15 middleware"