diff --git a/package-lock.json b/package-lock.json
index dd40379354..67ca8b5c91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19718,9 +19718,9 @@
       }
     },
     "node_modules/marked": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-8.0.0.tgz",
-      "integrity": "sha512-RI/D5csFVreNrFchdKFSdV38GDHJdD7OdmbNWYzGvApPb0A9pyypgfHC/FBH4ugmRE8cr7yg/TH7tu8585eMhA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-9.0.0.tgz",
+      "integrity": "sha512-37yoTpjU+TSXb9OBYY5n78z/CqXh76KiQj9xsKxEdztzU9fRLmbWO5YqKxgCVGKlNdexppnbKTkwB3RipVri8w==",
       "bin": {
         "marked": "bin/marked.js"
       },
@@ -30105,7 +30105,7 @@
         "highlight.js": "^11.8.0",
         "iframe-resizer": "^4.3.6",
         "js-beautify": "^1.14.9",
-        "marked": "^8.0.0",
+        "marked": "^9.0.0",
         "outdent": "^0.8.0",
         "shuffle-seed": "^1.1.6",
         "slug": "^8.2.3"
diff --git a/packages/govuk-frontend-review/package.json b/packages/govuk-frontend-review/package.json
index 2314fa93e6..9d9824abf2 100644
--- a/packages/govuk-frontend-review/package.json
+++ b/packages/govuk-frontend-review/package.json
@@ -34,7 +34,7 @@
     "highlight.js": "^11.8.0",
     "iframe-resizer": "^4.3.6",
     "js-beautify": "^1.14.9",
-    "marked": "^8.0.0",
+    "marked": "^9.0.0",
     "outdent": "^0.8.0",
     "shuffle-seed": "^1.1.6",
     "slug": "^8.2.3"