diff --git a/composer.json b/composer.json
index 1393b76..8d5a58f 100644
--- a/composer.json
+++ b/composer.json
@@ -49,7 +49,7 @@
     },
     "require-dev": {
         "laminas/laminas-coding-standard": "~2.5.0",
-        "laminas/laminas-diactoros": "^2.25.2",
+        "laminas/laminas-diactoros": "^3.0.0",
         "laminas/laminas-servicemanager": "^3.20.0",
         "laminas/laminas-stratigility": "^3.9.0",
         "phpunit/phpunit": "^10.1.2",
diff --git a/composer.lock b/composer.lock
index d875314..4b7ad6b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "8a7a120e22cf2de52e93888d92f48899",
+    "content-hash": "2051216fc042a02c62c51dfb27f46b34",
     "packages": [
         {
             "name": "fig/http-message-util",
@@ -1180,29 +1180,26 @@
         },
         {
             "name": "laminas/laminas-diactoros",
-            "version": "2.25.2",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laminas/laminas-diactoros.git",
-                "reference": "9f3f4bf5b99c9538b6f1dbcc20f6fec357914f9e"
+                "reference": "2515f4134258b1b418c23cb86606b8a09dd01aea"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/laminas/laminas-diactoros/zipball/9f3f4bf5b99c9538b6f1dbcc20f6fec357914f9e",
-                "reference": "9f3f4bf5b99c9538b6f1dbcc20f6fec357914f9e",
+                "url": "https://api.github.com/repos/laminas/laminas-diactoros/zipball/2515f4134258b1b418c23cb86606b8a09dd01aea",
+                "reference": "2515f4134258b1b418c23cb86606b8a09dd01aea",
                 "shasum": ""
             },
             "require": {
                 "php": "~8.0.0 || ~8.1.0 || ~8.2.0",
-                "psr/http-factory": "^1.0",
-                "psr/http-message": "^1.1"
-            },
-            "conflict": {
-                "zendframework/zend-diactoros": "*"
+                "psr/http-factory": "^1.0.2",
+                "psr/http-message": "^1.1 || ^2.0"
             },
             "provide": {
-                "psr/http-factory-implementation": "1.0",
-                "psr/http-message-implementation": "1.0"
+                "psr/http-factory-implementation": "^1.1 || ^2.0",
+                "psr/http-message-implementation": "^1.1 || ^2.0"
             },
             "require-dev": {
                 "ext-curl": "*",
@@ -1210,11 +1207,11 @@
                 "ext-gd": "*",
                 "ext-libxml": "*",
                 "http-interop/http-factory-tests": "^0.9.0",
-                "laminas/laminas-coding-standard": "^2.5",
-                "php-http/psr7-integration-tests": "^1.2",
+                "laminas/laminas-coding-standard": "~2.5.0",
+                "php-http/psr7-integration-tests": "^1.3",
                 "phpunit/phpunit": "^9.5.28",
                 "psalm/plugin-phpunit": "^0.18.4",
-                "vimeo/psalm": "^5.6"
+                "vimeo/psalm": "^5.9"
             },
             "type": "library",
             "extra": {
@@ -1229,18 +1226,9 @@
                     "src/functions/marshal_headers_from_sapi.php",
                     "src/functions/marshal_method_from_sapi.php",
                     "src/functions/marshal_protocol_version_from_sapi.php",
-                    "src/functions/marshal_uri_from_sapi.php",
                     "src/functions/normalize_server.php",
                     "src/functions/normalize_uploaded_files.php",
-                    "src/functions/parse_cookie_header.php",
-                    "src/functions/create_uploaded_file.legacy.php",
-                    "src/functions/marshal_headers_from_sapi.legacy.php",
-                    "src/functions/marshal_method_from_sapi.legacy.php",
-                    "src/functions/marshal_protocol_version_from_sapi.legacy.php",
-                    "src/functions/marshal_uri_from_sapi.legacy.php",
-                    "src/functions/normalize_server.legacy.php",
-                    "src/functions/normalize_uploaded_files.legacy.php",
-                    "src/functions/parse_cookie_header.legacy.php"
+                    "src/functions/parse_cookie_header.php"
                 ],
                 "psr-4": {
                     "Laminas\\Diactoros\\": "src/"
@@ -1273,7 +1261,7 @@
                     "type": "community_bridge"
                 }
             ],
-            "time": "2023-04-17T15:44:17+00:00"
+            "time": "2023-05-04T21:18:23+00:00"
         },
         {
             "name": "laminas/laminas-escaper",