diff --git a/markdown-previewer/package-lock.json b/markdown-previewer/package-lock.json
index 53bf3aa7c..481fe1dfc 100644
--- a/markdown-previewer/package-lock.json
+++ b/markdown-previewer/package-lock.json
@@ -8398,9 +8398,9 @@
       }
     },
     "marked": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-0.6.1.tgz",
-      "integrity": "sha512-+H0L3ibcWhAZE02SKMqmvYsErLo4EAVJxu5h3bHBBDvvjeWXtl92rGUSBYHL2++5Y+RSNgl8dYOAXcYe7lp1fA=="
+      "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-4.0.10.tgz",
+      "integrity": "sha512-+QvuFj0nGgO970fySghXGmuw+Fd0gD2x3+MqCWLIPf5oxdv1Ka6b2q+z9RP01P/IaKPMEramy+7cNy/Lw8c3hw=="
     },
     "math-random": {
       "version": "1.0.1",
diff --git a/markdown-previewer/package.json b/markdown-previewer/package.json
index 36603436b..8f7155d2d 100644
--- a/markdown-previewer/package.json
+++ b/markdown-previewer/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "marked": "^0.6.1",
+    "marked": "^4.0.10",
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
     "react-scripts": "2.1.1"