diff --git a/package-lock.json b/package-lock.json
index bf50452..57aec47 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -863,9 +863,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.includes": {
       "version": "4.3.0",
@@ -930,10 +930,6 @@
         "yallist": "^2.1.2"
       }
     },
-    "markflat.showdown": {
-      "version": "1.0.0",
-      "resolved": "github:takb/markflat.showdown#6f770424daeb6b117103a5361a005253702e78cd"
-    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",