diff --git a/package-lock.json b/package-lock.json
index 375400a..914f335 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "lit": "^2.3.1",
-        "marked": "^4.2.5"
+        "marked": "^18.0.0"
       },
       "devDependencies": {
         "@types/marked": "^4.0.8",
@@ -2537,15 +2537,15 @@
       }
     },
     "node_modules/marked": {
-      "version": "4.2.5",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-4.2.5.tgz",
-      "integrity": "sha512-jPueVhumq7idETHkb203WDD4fMA3yV9emQ5vLwop58lu8bTclMghBWcYAavlDqIEMaisADinV1TooIFCfqOsYQ==",
+      "version": "18.0.4",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-18.0.4.tgz",
+      "integrity": "sha512-c/BTaKzg0G6ezQx97DAkYU7k0HM6ys0FqYeKBL6hlBByZwy+ycA1+f0vDdjMHKKeEjdgkx0GOv9Il6D+85cOqA==",
       "license": "MIT",
       "bin": {
         "marked": "bin/marked.js"
       },
       "engines": {
-        "node": ">= 12"
+        "node": ">= 20"
       }
     },
     "node_modules/merge2": {
@@ -5819,9 +5819,9 @@
       }
     },
     "marked": {
-      "version": "4.2.5",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-4.2.5.tgz",
-      "integrity": "sha512-jPueVhumq7idETHkb203WDD4fMA3yV9emQ5vLwop58lu8bTclMghBWcYAavlDqIEMaisADinV1TooIFCfqOsYQ=="
+      "version": "18.0.4",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-18.0.4.tgz",
+      "integrity": "sha512-c/BTaKzg0G6ezQx97DAkYU7k0HM6ys0FqYeKBL6hlBByZwy+ycA1+f0vDdjMHKKeEjdgkx0GOv9Il6D+85cOqA=="
     },
     "merge2": {
       "version": "1.4.1",
diff --git a/package.json b/package.json
index d77a23c..5322caa 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   },
   "dependencies": {
     "lit": "^2.3.1",
-    "marked": "^4.2.5"
+    "marked": "^18.0.0"
   },
   "devDependencies": {
     "@types/marked": "^4.0.8",
diff --git a/yarn.lock b/yarn.lock
index f370be8..55678cd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1308,10 +1308,10 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-marked@^4.2.5:
-  version "4.2.5"
-  resolved "https://registry.npmjs.org/marked/-/marked-4.2.5.tgz"
-  integrity sha512-jPueVhumq7idETHkb203WDD4fMA3yV9emQ5vLwop58lu8bTclMghBWcYAavlDqIEMaisADinV1TooIFCfqOsYQ==
+marked@^18.0.0:
+  version "18.0.4"
+  resolved "https://registry.npmjs.org/marked/-/marked-18.0.4.tgz"
+  integrity sha512-c/BTaKzg0G6ezQx97DAkYU7k0HM6ys0FqYeKBL6hlBByZwy+ycA1+f0vDdjMHKKeEjdgkx0GOv9Il6D+85cOqA==
 
 merge2@^1.2.3, merge2@^1.3.0, merge2@^1.4.1:
   version "1.4.1"