diff --git a/composer.lock b/composer.lock
index 1597e06..5d0e212 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,7 +1,7 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "7075279850d2757284ec4f45793eee25",
@@ -186,21 +186,25 @@
         },
         {
             "name": "erusev/parsedown",
-            "version": "1.6.3",
+            "version": "1.7.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/erusev/parsedown.git",
-                "reference": "728952b90a333b5c6f77f06ea9422b94b585878d"
+                "reference": "6d893938171a817f4e9bc9e86f2da1e370b7bcd7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/erusev/parsedown/zipball/728952b90a333b5c6f77f06ea9422b94b585878d",
-                "reference": "728952b90a333b5c6f77f06ea9422b94b585878d",
+                "url": "https://api.github.com/repos/erusev/parsedown/zipball/6d893938171a817f4e9bc9e86f2da1e370b7bcd7",
+                "reference": "6d893938171a817f4e9bc9e86f2da1e370b7bcd7",
                 "shasum": ""
             },
             "require": {
+                "ext-mbstring": "*",
                 "php": ">=5.3.0"
             },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35"
+            },
             "type": "library",
             "autoload": {
                 "psr-0": {
@@ -224,7 +228,7 @@
                 "markdown",
                 "parser"
             ],
-            "time": "2017-05-14T14:47:48+00:00"
+            "time": "2019-03-17T18:48:37+00:00"
         },
         {
             "name": "laravel/framework",
@@ -1808,8 +1812,8 @@
             "authors": [
                 {
                     "name": "Tijs Verkoyen",
-                    "email": "css_to_inline_styles@verkoyen.eu",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "css_to_inline_styles@verkoyen.eu"
                 }
             ],
             "description": "CssToInlineStyles is a class that enables you to convert HTML-pages/files into HTML-pages/files with inline styles. This is very useful when you're sending emails.",
@@ -2013,8 +2017,8 @@
             "authors": [
                 {
                     "name": "Filipe Dobreira",
-                    "homepage": "https://github.com/filp",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "homepage": "https://github.com/filp"
                 }
             ],
             "description": "php error handling for cool kids",
@@ -2272,18 +2276,18 @@
             "authors": [
                 {
                     "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "arne@blankerts.de"
                 },
                 {
                     "name": "Sebastian Heuer",
-                    "email": "sebastian@phpeople.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpeople.de"
                 },
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
@@ -2319,18 +2323,18 @@
             "authors": [
                 {
                     "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "arne@blankerts.de"
                 },
                 {
                     "name": "Sebastian Heuer",
-                    "email": "sebastian@phpeople.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpeople.de"
                 },
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "Library for handling version information and constraints",
@@ -2596,8 +2600,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sb@sebastian-bergmann.de"
                 }
             ],
             "description": "Library that provides collection, processing, and rendering functionality for PHP code coverage information.",
@@ -2644,8 +2648,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sb@sebastian-bergmann.de"
                 }
             ],
             "description": "FilterIterator implementation that filters files based on a list of suffixes.",
@@ -2686,8 +2690,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "Simple template engine.",
@@ -2735,8 +2739,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sb@sebastian-bergmann.de"
                 }
             ],
             "description": "Utility class for timing",
@@ -2866,8 +2870,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "The PHP Unit Testing framework.",
@@ -2936,6 +2940,7 @@
                 "mock",
                 "xunit"
             ],
+            "abandoned": true,
             "time": "2017-08-03T14:08:16+00:00"
         },
         {
@@ -3489,8 +3494,8 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "lead"
+                    "role": "lead",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
@@ -3586,8 +3591,8 @@
             "authors": [
                 {
                     "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "arne@blankerts.de"
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",