diff --git a/extensions/markdown-language-features/package-lock.json b/extensions/markdown-language-features/package-lock.json
index cfeb2c76228..4e0de48a0f9 100644
--- a/extensions/markdown-language-features/package-lock.json
+++ b/extensions/markdown-language-features/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@vscode/extension-telemetry": "^0.9.0",
-        "dompurify": "^3.0.5",
+        "dompurify": "^3.1.3",
         "highlight.js": "^11.8.0",
         "markdown-it": "^12.3.2",
         "markdown-it-front-matter": "^0.2.4",
@@ -352,9 +352,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.0.5",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.0.5.tgz",
-      "integrity": "sha512-F9e6wPGtY+8KNMRAVfxeCOHU0/NPWMSENNq4pQctuXRqqdEPW7q3CrLbR5Nse044WwacyjHGOMlvNsBe1y6z9A=="
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.1.3.tgz",
+      "integrity": "sha512-5sOWYSNPaxz6o2MUPvtyxTTqR4D3L77pr5rUQoWgD5ROQtVIZQgJkXbo1DLlK3vj11YGw5+LnF4SYti4gZmwng=="
     },
     "node_modules/domutils": {
       "version": "3.1.0",
diff --git a/extensions/markdown-language-features/package.json b/extensions/markdown-language-features/package.json
index ad6446073f3..a4555a9e588 100644
--- a/extensions/markdown-language-features/package.json
+++ b/extensions/markdown-language-features/package.json
@@ -764,7 +764,7 @@
   },
   "dependencies": {
     "@vscode/extension-telemetry": "^0.9.0",
-    "dompurify": "^3.0.5",
+    "dompurify": "^3.1.3",
     "highlight.js": "^11.8.0",
     "markdown-it": "^12.3.2",
     "markdown-it-front-matter": "^0.2.4",