diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index 558498dc185..adbb728cd8d 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -105,7 +105,7 @@
         "jest-runner-vscode": "^3.0.1",
         "jsdom": "^30.0.1",
         "lint-staged": "^17.3.0",
-        "markdownlint-cli2": "^0.24.0",
+        "markdownlint-cli2": "^0.24.1",
         "markdownlint-cli2-formatter-pretty": "^0.0.10",
         "npm-run-all": "^4.1.5",
         "patch-package": "^8.0.1",
@@ -15012,7 +15012,8 @@
     "node_modules/argparse": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
+      "dev": true
     },
     "node_modules/aria-query": {
       "version": "5.3.0",
@@ -25341,9 +25342,9 @@
       "dev": true
     },
     "node_modules/js-yaml": {
-      "version": "5.4.3",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.4.3.tgz",
-      "integrity": "sha512-yzzNtgczwgoVHNigCyKTXcQJU4Y8t/ikU4UxXW0BvrLfHTGWZhsNcOT2s/a7vn81/4KqVnNmHjaUEPlvWnNwVw==",
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.5.0.tgz",
+      "integrity": "sha512-paNr4LFIFPjeeSmwNYdrb8FafLLG/Cr2Af3GjbsHJ5CxIjH4r0c2emlmRdAtpPAieP1gRVzk6buBbVP5gBMGAg==",
       "funding": [
         {
           "type": "github",
@@ -25356,12 +25357,28 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "argparse": "^2.0.1"
+        "argparse": "^3.0.3"
       },
       "bin": {
         "js-yaml": "bin/js-yaml.mjs"
       }
     },
+    "node_modules/js-yaml/node_modules/argparse": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-3.0.4.tgz",
+      "integrity": "sha512-fwWK3Zq22l4XJJjx5mcBHGikIk+hJqO+32dPm0Jur7+rtG5x1scOjSfdT9ZKeWHPpsya/l0HHK4tDImBkTrtvA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/puzrin"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/nodeca"
+        }
+      ],
+      "license": "PSF-2.0"
+    },
     "node_modules/jschardet": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/jschardet/-/jschardet-3.1.3.tgz",
@@ -26564,9 +26581,9 @@
       "license": "PSF-2.0"
     },
     "node_modules/markdownlint": {
-      "version": "0.42.0",
-      "resolved": "https://registry.npmjs.org/markdownlint/-/markdownlint-0.42.0.tgz",
-      "integrity": "sha512-kzsCV/rPWRFn3jUhcB919YF4Qgeh0g9tcogoXFadGSo6Zxj6662YOqWXv0jDn8nv5KCCxDfMKJZv6N4HkNkvTg==",
+      "version": "0.42.1",
+      "resolved": "https://registry.npmjs.org/markdownlint/-/markdownlint-0.42.1.tgz",
+      "integrity": "sha512-Otolm9JX12iO2NG5cetlKfzGygpiLSlHuqXKxoT6HGhN5HtbxprJPicKZqqCQd88qOvUi/TEs3o1AmcYioVscA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -26578,7 +26595,7 @@
         "micromark-extension-gfm-table": "2.1.2",
         "micromark-extension-math": "3.1.0",
         "micromark-util-types": "2.0.3",
-        "re2js": "2.8.6",
+        "re2js": "2.9.1",
         "string-width": "8.3.0"
       },
       "engines": {
@@ -26589,18 +26606,18 @@
       }
     },
     "node_modules/markdownlint-cli2": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/markdownlint-cli2/-/markdownlint-cli2-0.24.0.tgz",
-      "integrity": "sha512-c5hU2MDoTlS230MLzdNlkIyxImXq5acxGKz4nYz4aDhH/2BgFtpsA7iK9/OoTHMgZ4FuR0wedTQA31K6Lp9I/Q==",
+      "version": "0.24.1",
+      "resolved": "https://registry.npmjs.org/markdownlint-cli2/-/markdownlint-cli2-0.24.1.tgz",
+      "integrity": "sha512-nLhes/MIPJQLm+Gmh+3jQEnwMOaalaN0wfCD2qz1247zNZ7R3r2WDHJB191x4hcy6soKAUTybp1bFK7aJGw/WA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "globby": "16.2.4",
-        "js-yaml": "5.4.3",
+        "js-yaml": "5.5.0",
         "jsonc-parser": "3.3.1",
         "jsonpointer": "5.0.1",
         "markdown-it": "15.0.3",
-        "markdownlint": "0.42.0",
+        "markdownlint": "0.42.1",
         "markdownlint-cli2-formatter-default": "0.0.6",
         "micromatch": "4.0.8",
         "smol-toml": "1.9.1"
@@ -26648,9 +26665,9 @@
       }
     },
     "node_modules/markdownlint/node_modules/ansi-regex": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.4.0.tgz",
-      "integrity": "sha512-KzTVk2tCWAHtYrvvvaP8bJKJq2pVinhLcGEQdtLIYPbmNGNyYe8QwNaTUYQp2J7/vIsUKt5QCqAfUkYyG9DkOw==",
+      "version": "6.6.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.6.0.tgz",
+      "integrity": "sha512-XZ5apbzreCbXSKwPjJstu8R0zOi247w3XYwWxtwBXgpZrCyc1Ka7p9/xY0A9/diMewmHbEKz+FIraWaEWjlN5g==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -29095,13 +29112,13 @@
       ]
     },
     "node_modules/re2js": {
-      "version": "2.8.6",
-      "resolved": "https://registry.npmjs.org/re2js/-/re2js-2.8.6.tgz",
-      "integrity": "sha512-xLgQil4kIUCrAzVk9fRSkxkFNwmygLFjVxXrLc65aE1F0+Zsb8rxumFBy4XKyvgMCTL6kilDq3EZ0piE2dP/Dg==",
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/re2js/-/re2js-2.9.1.tgz",
+      "integrity": "sha512-JIT3bEEUZTOR2YS1walNEIfH4cF/cQeZcBUFq7ldqO6lR6g0X5CBq/S8rsa9omzZcsNf8qc36jCkWpKKtncrZg==",
       "dev": true,
       "license": "MIT",
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
       }
     },
     "node_modules/react": {
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index c91130dec56..aae773b072a 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -2163,7 +2163,7 @@
     "jest-runner-vscode": "^3.0.1",
     "jsdom": "^30.0.1",
     "lint-staged": "^17.3.0",
-    "markdownlint-cli2": "^0.24.0",
+    "markdownlint-cli2": "^0.24.1",
     "markdownlint-cli2-formatter-pretty": "^0.0.10",
     "npm-run-all": "^4.1.5",
     "patch-package": "^8.0.1",