diff --git a/package-lock.json b/package-lock.json
index 0817efb6a..ecfbc4013 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6101,13 +6101,32 @@
       }
     },
     "node_modules/linkify-it": {
-      "version": "3.0.3",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-5.0.1.tgz",
+      "integrity": "sha512-wVoTjP4Q6R0NW5hiZkVJaFZPWgtXfoGF+6LucL3/FtiNjmcHhYjEr5f1Kqjirc1nBW07J/ZuRFumqr2oqccEWg==",
       "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/puzrin"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/markdown-it"
+        }
+      ],
       "license": "MIT",
       "dependencies": {
-        "uc.micro": "^1.0.1"
+        "uc.micro": "^2.0.0"
       }
     },
+    "node_modules/linkify-it/node_modules/uc.micro": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
+      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/liquidjs": {
       "version": "10.7.1",
       "dev": true,
@@ -6269,18 +6288,31 @@
       }
     },
     "node_modules/markdown-it": {
-      "version": "12.3.2",
+      "version": "14.2.0",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-14.2.0.tgz",
+      "integrity": "sha512-1TGiQiJVRQ3NPmZH6sx5Cfnmg6GQm9jvC1ch4TK511NjSJvjzKLzn5pPfZRNZkRPZP0HqCioSndqH8v2nRaWVQ==",
       "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/puzrin"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/markdown-it"
+        }
+      ],
       "license": "MIT",
       "dependencies": {
         "argparse": "^2.0.1",
-        "entities": "~2.1.0",
-        "linkify-it": "^3.0.1",
-        "mdurl": "^1.0.1",
-        "uc.micro": "^1.0.5"
+        "entities": "^4.4.0",
+        "linkify-it": "^5.0.1",
+        "mdurl": "^2.0.0",
+        "punycode.js": "^2.3.1",
+        "uc.micro": "^2.1.0"
       },
       "bin": {
-        "markdown-it": "bin/markdown-it.js"
+        "markdown-it": "bin/markdown-it.mjs"
       }
     },
     "node_modules/markdown-it-anchor": {
@@ -6308,13 +6340,19 @@
       "dev": true,
       "license": "Python-2.0"
     },
-    "node_modules/markdown-it/node_modules/entities": {
+    "node_modules/markdown-it/node_modules/mdurl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/mdurl/-/mdurl-2.0.0.tgz",
+      "integrity": "sha512-Lf+9+2r+Tdp5wXDXC4PcIBjTDtq4UKjCPMQhKIuzpJNW0b96kVqSwW0bT7FhRSfmAiFYgP+SCRvdrDozfh0U5w==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/markdown-it/node_modules/uc.micro": {
       "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
+      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
       "dev": true,
-      "license": "BSD-2-Clause",
-      "funding": {
-        "url": "https://github.com/fb55/entities?sponsor=1"
-      }
+      "license": "MIT"
     },
     "node_modules/marked": {
       "version": "4.3.0",
@@ -7410,6 +7448,16 @@
         "node": ">=6"
       }
     },
+    "node_modules/punycode.js": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/punycode.js/-/punycode.js-2.3.1.tgz",
+      "integrity": "sha512-uxFIHU0YlHYhDQtV4R9J6a52SLx28BCjT+4ieh7IGbgwVJWO+km431c4yRlREUAsAmt/uMjQUyQHNEPf0M39CA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/qs": {
       "version": "6.11.2",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.2.tgz",
@@ -9023,7 +9071,7 @@
         "lit-dev-tools-cjs": "^0.0.0",
         "lit-dev-tools-esm": "^0.0.0",
         "luxon": "^2.0.2",
-        "markdown-it": "^12.0.4",
+        "markdown-it": "^14.2.0",
         "markdown-it-anchor": "^8.3.0",
         "markdown-it-attrs": "^4.0.0",
         "rollup": "^2.23.0",
diff --git a/packages/lit-dev-content/package.json b/packages/lit-dev-content/package.json
index 27753efba..32eda57e8 100644
--- a/packages/lit-dev-content/package.json
+++ b/packages/lit-dev-content/package.json
@@ -173,7 +173,7 @@
     "lit-dev-tools-cjs": "^0.0.0",
     "lit-dev-tools-esm": "^0.0.0",
     "luxon": "^2.0.2",
-    "markdown-it": "^12.0.4",
+    "markdown-it": "^14.2.0",
     "markdown-it-anchor": "^8.3.0",
     "markdown-it-attrs": "^4.0.0",
     "rollup": "^2.23.0",