diff --git a/package-lock.json b/package-lock.json
index 8f07ee6ac..e0aa503a2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -45,7 +45,7 @@
         "joi": "^17.13.3",
         "liquidjs": "^10.24.0",
         "lodash": "^4.17.21",
-        "marked": "^15.0.12",
+        "marked": "^17.0.0",
         "nunjucks": "^3.2.4",
         "outdent": "^0.8.0",
         "pino": "^9.14.0",
@@ -2232,6 +2232,18 @@
         "joi": "^17.0.0"
       }
     },
+    "node_modules/@defra/forms-model/node_modules/marked": {
+      "version": "15.0.12",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-15.0.12.tgz",
+      "integrity": "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA==",
+      "license": "MIT",
+      "bin": {
+        "marked": "bin/marked.js"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
     "node_modules/@defra/hapi-tracing": {
       "version": "1.29.0",
       "resolved": "https://registry.npmjs.org/@defra/hapi-tracing/-/hapi-tracing-1.29.0.tgz",
@@ -12988,15 +13000,15 @@
       }
     },
     "node_modules/marked": {
-      "version": "15.0.12",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-15.0.12.tgz",
-      "integrity": "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA==",
+      "version": "17.0.0",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-17.0.0.tgz",
+      "integrity": "sha512-KkDYEWEEiYJw/KC+DVm1zzlpMQSMIu6YRltkcCvwheCp8HWPXCk9JwOmHJKBlGfzcpzcIt6x3sMnTsRm/51oDg==",
       "license": "MIT",
       "bin": {
         "marked": "bin/marked.js"
       },
       "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
       }
     },
     "node_modules/math-intrinsics": {
diff --git a/package.json b/package.json
index 4ff0c294e..14c14a2ae 100644
--- a/package.json
+++ b/package.json
@@ -105,7 +105,7 @@
     "joi": "^17.13.3",
     "liquidjs": "^10.24.0",
     "lodash": "^4.17.21",
-    "marked": "^15.0.12",
+    "marked": "^17.0.0",
     "nunjucks": "^3.2.4",
     "outdent": "^0.8.0",
     "pino": "^9.14.0",