diff --git a/composer.lock b/composer.lock
index 95e2666..0c95366 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1038,22 +1038,22 @@
         },
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-            "version": "2.24.0",
+            "version": "2.25.1",
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                 "url": "https://github.com/laminas/laminas-diactoros.git",
-                "reference": "6028af6c3b5ced4d063a680d2483cce67578b902"
+                "reference": "13f45e5ba09c9b27752247d3be186fc49c2ca3a5"
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-                "url": "https://api.github.com/repos/laminas/laminas-diactoros/zipball/6028af6c3b5ced4d063a680d2483cce67578b902",
-                "reference": "6028af6c3b5ced4d063a680d2483cce67578b902",
+                "url": "https://api.github.com/repos/laminas/laminas-diactoros/zipball/13f45e5ba09c9b27752247d3be186fc49c2ca3a5",
+                "reference": "13f45e5ba09c9b27752247d3be186fc49c2ca3a5",
                 "shasum": ""
             },
             "require": {
                 "php": "~8.0.0 || ~8.1.0 || ~8.2.0",
                 "psr/http-factory": "^1.0",
-                "psr/http-message": "^1.0"
+                "psr/http-message": "^1.1"
             },
             "conflict": {
                 "zendframework/zend-diactoros": "*"
@@ -1068,11 +1068,11 @@
                 "ext-gd": "*",
                 "ext-libxml": "*",
                 "http-interop/http-factory-tests": "^0.9.0",
-                "laminas/laminas-coding-standard": "^2.4.0",
+                "laminas/laminas-coding-standard": "^2.5",
                 "php-http/psr7-integration-tests": "^1.2",
-                "phpunit/phpunit": "^9.5.27",
+                "phpunit/phpunit": "^9.5.28",
                 "psalm/plugin-phpunit": "^0.18.4",
-                "vimeo/psalm": "^5.4"
+                "vimeo/psalm": "^5.6"
             },
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             "extra": {
@@ -1131,34 +1131,34 @@
                     "type": "community_bridge"
                 }
             ],
-            "time": "2022-12-20T12:22:40+00:00"
+            "time": "2023-04-08T00:31:34+00:00"
         },
         {
             "name": "laminas/laminas-httphandlerrunner",
-            "version": "2.5.0",
+            "version": "2.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laminas/laminas-httphandlerrunner.git",
-                "reference": "7a47834aaad7852816d2ec4fdbb0492163b039ae"
+                "reference": "4845298215708c660f76a2d5d8b78e67979457c5"
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             "dist": {
                 "type": "zip",
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-                "reference": "7a47834aaad7852816d2ec4fdbb0492163b039ae",
+                "url": "https://api.github.com/repos/laminas/laminas-httphandlerrunner/zipball/4845298215708c660f76a2d5d8b78e67979457c5",
+                "reference": "4845298215708c660f76a2d5d8b78e67979457c5",
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             },
             "require": {
-                "php": "~8.0.0 || ~8.1.0 || ~8.2.0",
-                "psr/http-message": "^1.0",
+                "php": "~8.1.0 || ~8.2.0",
+                "psr/http-message": "^1.0 || ^2.0",
                 "psr/http-message-implementation": "^1.0",
                 "psr/http-server-handler": "^1.0"
             },
             "require-dev": {
-                "laminas/laminas-coding-standard": "~2.4.0",
-                "laminas/laminas-diactoros": "^2.18",
-                "phpunit/phpunit": "^9.5.26",
-                "psalm/plugin-phpunit": "^0.18.0",
-                "vimeo/psalm": "^5.0.0"
+                "laminas/laminas-coding-standard": "~2.5.0",
+                "laminas/laminas-diactoros": "^2.25.1",
+                "phpunit/phpunit": "^10.0.19",
+                "psalm/plugin-phpunit": "^0.18.4",
+                "vimeo/psalm": "^5.9"
             },
             "type": "library",
             "extra": {
@@ -1198,7 +1198,7 @@
                     "type": "community_bridge"
                 }
             ],
-            "time": "2023-01-05T21:54:03+00:00"
+            "time": "2023-04-09T21:49:08+00:00"
         },
         {
             "name": "league/container",
@@ -1611,16 +1611,16 @@
         },
         {
             "name": "photogabble/tuppence",
-            "version": "2.0.1",
+            "version": "2.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/photogabble/tuppence.git",
-                "reference": "5ddd1e0c5db51a1304375b4204bd6f0bb87a964b"
+                "reference": "45ab897293b243ed18d16f23919dd983598bfb5a"
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-                "url": "https://api.github.com/repos/photogabble/tuppence/zipball/5ddd1e0c5db51a1304375b4204bd6f0bb87a964b",
-                "reference": "5ddd1e0c5db51a1304375b4204bd6f0bb87a964b",
+                "url": "https://api.github.com/repos/photogabble/tuppence/zipball/45ab897293b243ed18d16f23919dd983598bfb5a",
+                "reference": "45ab897293b243ed18d16f23919dd983598bfb5a",
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             "require": {
@@ -1632,7 +1632,7 @@
                 "php": "^8.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^8.5"
+                "phpunit/phpunit": "^9.6"
             },
             "type": "library",
             "extra": {
@@ -1642,7 +1642,8 @@
             },
             "autoload": {
                 "psr-4": {
-                    "Photogabble\\Tuppence\\": "src"
+                    "Photogabble\\Tuppence\\": "src",
+                    "Photogabble\\Tuppence\\Tests\\Helpers\\": "tests/Helpers"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -1658,9 +1659,9 @@
             "description": "Extremely small framework.",
             "support": {
                 "issues": "https://github.com/photogabble/tuppence/issues",
-                "source": "https://github.com/photogabble/tuppence/tree/2.0.1"
+                "source": "https://github.com/photogabble/tuppence/tree/2.0.3"
             },
-            "time": "2023-01-30T21:11:00+00:00"
+            "time": "2023-04-05T21:19:31+00:00"
         },
         {
             "name": "psr/cache",
@@ -1871,25 +1872,25 @@
         },
         {
             "name": "psr/http-message",
-            "version": "1.0.1",
+            "version": "1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/http-message.git",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+                "reference": "cb6ce4845ce34a8ad9e68117c10ee90a29919eba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/cb6ce4845ce34a8ad9e68117c10ee90a29919eba",
+                "reference": "cb6ce4845ce34a8ad9e68117c10ee90a29919eba",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.1.x-dev"
                 }
             },
             "autoload": {
@@ -1918,9 +1919,9 @@
                 "response"
             ],
             "support": {
-                "source": "https://github.com/php-fig/http-message/tree/master"
+                "source": "https://github.com/php-fig/http-message/tree/1.1"
             },
-            "time": "2016-08-06T14:39:51+00:00"
+            "time": "2023-04-04T09:50:52+00:00"
         },
         {
             "name": "psr/http-server-handler",