diff --git a/composer.json b/composer.json
index b12892a..e6b9a69 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
         "phpstan/phpstan": "^1.10",
         "phpunit/phpunit": "^7.0|^8.5.30|^9.0",
         "equip/dispatch": "^2.0",
-        "laminas/laminas-diactoros": "^2.0"
+        "laminas/laminas-diactoros": "^3.0"
     },
     "autoload": {
         "psr-4": {