diff --git a/composer.lock b/composer.lock
index 29a53ce..3bda738 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": "5eba86da256ddeb8084c32d3d10e18d3",
@@ -219,19 +219,20 @@
         },
         {
             "name": "erusev/parsedown",
-            "version": "1.6.4",
+            "version": "1.7.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/erusev/parsedown.git",
-                "reference": "fbe3fe878f4fe69048bb8a52783a09802004f548"
+                "reference": "cb17b6477dfff935958ba01325f2e8a2bfa6dab3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/erusev/parsedown/zipball/fbe3fe878f4fe69048bb8a52783a09802004f548",
-                "reference": "fbe3fe878f4fe69048bb8a52783a09802004f548",
+                "url": "https://api.github.com/repos/erusev/parsedown/zipball/cb17b6477dfff935958ba01325f2e8a2bfa6dab3",
+                "reference": "cb17b6477dfff935958ba01325f2e8a2bfa6dab3",
                 "shasum": ""
             },
             "require": {
+                "ext-mbstring": "*",
                 "php": ">=5.3.0"
             },
             "require-dev": {
@@ -260,7 +261,11 @@
                 "markdown",
                 "parser"
             ],
-            "time": "2017-11-14T20:44:03+00:00"
+            "support": {
+                "issues": "https://github.com/erusev/parsedown/issues",
+                "source": "https://github.com/erusev/parsedown/tree/1.7.x"
+            },
+            "time": "2019-12-30T22:54:17+00:00"
         },
         {
             "name": "fideloper/proxy",
@@ -3917,5 +3922,6 @@
     "platform": {
         "php": ">=7.0.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }