diff --git a/package.json b/package.json
index f8c38f3..1a7bc49 100644
--- a/package.json
+++ b/package.json
@@ -13,12 +13,12 @@
   },
   "dependencies": {
     "deepmerge": "^1.5.2",
-    "front-matter": "^2.0.5",
+    "front-matter": "^4.0.1",
     "glob": "^7.1.4",
     "handlebars": "^4.0.5",
-    "highlight.js": "^8.9.1",
+    "highlight.js": "^9.18.2",
     "js-yaml": "^3.14.0",
-    "marked": "^2",
+    "marked": "^4.0.10",
     "nopt": "^4.0.1",
     "slash": "^1.0.0",
     "strip-bom": "2.0.0",