diff --git a/package-lock.json b/package-lock.json
index 25362aa..8189149 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1337,9 +1337,9 @@
       "dev": true
     },
     "marked": {
-      "version": "0.3.19",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.19.tgz",
-      "integrity": "sha512-ea2eGWOqNxPcXv8dyERdSr/6FmzvWwzjMxpfGB/sbMccXoct+xY+YukPD+QTUZwyvK7BZwcr4m21WBOW41pAkg==",
+      "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-4.0.10.tgz",
+      "integrity": "sha512-+QvuFj0nGgO970fySghXGmuw+Fd0gD2x3+MqCWLIPf5oxdv1Ka6b2q+z9RP01P/IaKPMEramy+7cNy/Lw8c3hw==",
       "dev": true
     },
     "merge-source-map": {
diff --git a/package.json b/package.json
index dacdd68..4e202db 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "highlight.js": "^9.9.0",
     "jtaro-bundle": "^0.3.0",
     "jtaro-module": "^0.3.4",
-    "marked": "^0.3.6",
+    "marked": "^4.0.10",
     "rollup": "^0.40.0",
     "rollup-plugin-jtaro-module": "^0.3.2",
     "uglify-js": "^3.4.9"