diff --git a/composer.lock b/composer.lock
index a0d64ea..c29dbfc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -367,16 +367,16 @@
         },
         {
             "name": "phpgt/dom",
-            "version": "v2.1.1",
+            "version": "v2.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PhpGt/Dom.git",
-                "reference": "8b9cb8d839ac4503309bd54efbb37e533dd8994e"
+                "reference": "4df60cd75b6f86a5333cfb8a3c2d8ba0c61c2615"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PhpGt/Dom/zipball/8b9cb8d839ac4503309bd54efbb37e533dd8994e",
-                "reference": "8b9cb8d839ac4503309bd54efbb37e533dd8994e",
+                "url": "https://api.github.com/repos/PhpGt/Dom/zipball/4df60cd75b6f86a5333cfb8a3c2d8ba0c61c2615",
+                "reference": "4df60cd75b6f86a5333cfb8a3c2d8ba0c61c2615",
                 "shasum": ""
             },
             "require": {
@@ -384,7 +384,8 @@
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "php": ">=7.2",
-                "phpgt/cssxpath": "*"
+                "phpgt/cssxpath": "*",
+                "psr/http-message": "1.*"
             },
             "require-dev": {
                 "phpunit/phpunit": "8.*"
@@ -443,7 +444,7 @@
                 }
             ],
             "description": "The modern DOM API for PHP 7 projects.",
-            "time": "2019-08-14T13:59:30+00:00"
+            "time": "2019-08-15T09:40:43+00:00"
         },
         {
             "name": "phpspec/prophecy",
@@ -843,6 +844,56 @@
             ],
             "time": "2019-08-11T06:56:55+00:00"
         },
+        {
+            "name": "psr/http-message",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/http-message.git",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Http\\Message\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for HTTP messages",
+            "homepage": "https://github.com/php-fig/http-message",
+            "keywords": [
+                "http",
+                "http-message",
+                "psr",
+                "psr-7",
+                "request",
+                "response"
+            ],
+            "time": "2016-08-06T14:39:51+00:00"
+        },
         {
             "name": "sebastian/code-unit-reverse-lookup",
             "version": "1.0.1",