diff --git a/README.md b/README.md
index 1203df9..ea406a9 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ folder and navigate there within.
 Requirements
 ------------
 
-  - [PHP](https://php.net) >= 7.1
+  - [PHP](https://php.net) >= 7.2
 
 Installation
 ------------
diff --git a/composer.json b/composer.json
index 18dbca9..370e113 100644
--- a/composer.json
+++ b/composer.json
@@ -10,12 +10,12 @@
         }
     ],
     "require": {
-        "php": ">=7.1",
+        "php": ">=7.2",
         "erusev/parsedown": "^1.7",
         "phlak/config": "^6.0",
         "php-di/php-di": "^6.0",
         "php-di/slim-bridge": "^3.0",
-        "slim/psr7": "^0.6.0",
+        "slim/psr7": "^1.0",
         "slim/slim": "^4.3",
         "slim/twig-view": "3.0.0",
         "symfony/finder": "^5.0",
diff --git a/composer.lock b/composer.lock
index db99d3f..4ecff58 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": "b8d61605ee4f40b6ef5db770276ac304",
+    "content-hash": "0902b50f4f9e3a265445dd72c4494585",
     "packages": [
         {
             "name": "erusev/parsedown",
@@ -836,21 +836,21 @@
         },
         {
             "name": "slim/psr7",
-            "version": "0.6",
+            "version": "1.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/slimphp/Slim-Psr7.git",
-                "reference": "23015a8814382c244315602d44cb02d412b6b059"
+                "reference": "7ca5b5d96687b7c563238715cc80b12675d8b895"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/slimphp/Slim-Psr7/zipball/23015a8814382c244315602d44cb02d412b6b059",
-                "reference": "23015a8814382c244315602d44cb02d412b6b059",
+                "url": "https://api.github.com/repos/slimphp/Slim-Psr7/zipball/7ca5b5d96687b7c563238715cc80b12675d8b895",
+                "reference": "7ca5b5d96687b7c563238715cc80b12675d8b895",
                 "shasum": ""
             },
             "require": {
                 "fig/http-message-util": "^1.1.2",
-                "php": "^7.1",
+                "php": "^7.2",
                 "psr/http-factory": "^1.0",
                 "psr/http-message": "^1.0",
                 "ralouphie/getallheaders": "^3"
@@ -859,12 +859,13 @@
                 "psr/http-message-implementation": "1.0"
             },
             "require-dev": {
+                "adriansuter/php-autoload-override": "^1.0",
                 "ext-json": "*",
                 "http-interop/http-factory-tests": "^0.6.0",
                 "php-http/psr7-integration-tests": "dev-master",
-                "phpstan/phpstan": "^0.10",
-                "phpunit/phpunit": "^6.0|^7.0",
-                "squizlabs/php_codesniffer": "^3.3"
+                "phpstan/phpstan": "^0.12",
+                "phpunit/phpunit": "^8.5",
+                "squizlabs/php_codesniffer": "^3.5"
             },
             "type": "library",
             "autoload": {
@@ -905,7 +906,7 @@
                 "psr-7",
                 "psr7"
             ],
-            "time": "2019-10-05T20:27:07+00:00"
+            "time": "2020-01-04T23:05:43+00:00"
         },
         {
             "name": "slim/slim",