diff --git a/docs/package.json b/docs/package.json
index 8ef89a8..00169ef 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -14,7 +14,7 @@
     "@cvfile/sdk": "workspace:*",
     "@cvfile/viewer-web": "workspace:*",
     "astro": "^5.0.0",
-    "marked": "^14.1.4",
+    "marked": "^18.0.5",
     "pdf-lib": "^1.17.1"
   }
 }
diff --git a/packages/viewer-web/package.json b/packages/viewer-web/package.json
index 13d4cca..9d3b223 100644
--- a/packages/viewer-web/package.json
+++ b/packages/viewer-web/package.json
@@ -46,7 +46,7 @@
     "@cvfile/sdk": "workspace:^",
     "dompurify": "^3.4.11",
     "lit": "^3.3.3",
-    "marked": "^14.1.0",
+    "marked": "^18.0.5",
     "pdfjs-dist": "^4.7.76"
   },
   "devDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9aa2f87..1834b5f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -42,8 +42,8 @@ importers:
         specifier: ^5.0.0
         version: 5.18.1(@types/node@24.13.2)(rollup@4.60.3)(typescript@5.9.3)
       marked:
-        specifier: ^14.1.4
-        version: 14.1.4
+        specifier: ^18.0.5
+        version: 18.0.5
       pdf-lib:
         specifier: ^1.17.1
         version: 1.17.1
@@ -150,8 +150,8 @@ importers:
         specifier: ^3.3.3
         version: 3.3.3
       marked:
-        specifier: ^14.1.0
-        version: 14.1.4
+        specifier: ^18.0.5
+        version: 18.0.5
       pdfjs-dist:
         specifier: ^4.7.76
         version: 4.10.38
@@ -2322,9 +2322,9 @@ packages:
   markdown-table@3.0.4:
     resolution: {integrity: sha512-wiYz4+JrLyb/DqW2hkFJxP7Vd7JuTDm77fvbM8VfEQdmSMqcImWeeRbHwZjBjIFki/VaMK2BhFi7oUUZeM5bqw==}
 
-  marked@14.1.4:
-    resolution: {integrity: sha512-vkVZ8ONmUdPnjCKc5uTRvmkRbx4EAi2OkTOXmfTDhZz3OFqMNBM1oTTWwTr4HY4uAEojhzPf+Fy8F1DWa3Sndg==}
-    engines: {node: '>= 18'}
+  marked@18.0.5:
+    resolution: {integrity: sha512-S6GcvALHg6K4ohtu4E7x0a1AqhAjp6cV8KhLSyN9qVapnzJkusVBxZRcIU9AeYsbe6P1hKDusSbEOzGyyuce6w==}
+    engines: {node: '>= 20'}
     hasBin: true
 
   matcher@3.0.0:
@@ -5584,7 +5584,7 @@ snapshots:
 
   markdown-table@3.0.4: {}
 
-  marked@14.1.4: {}
+  marked@18.0.5: {}
 
   matcher@3.0.0:
     dependencies: