diff --git a/composer.lock b/composer.lock
index c4d2730..65733bd 100644
--- a/composer.lock
+++ b/composer.lock
@@ -276,19 +276,20 @@
         },
         {
             "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": {
@@ -317,7 +318,11 @@
                 "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",
@@ -4373,5 +4378,6 @@
     "platform": {
         "php": ">=7.0.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }