diff --git a/extensions/markdown-language-features/package-lock.json b/extensions/markdown-language-features/package-lock.json
index 38e31e367c5a2..3d1c9534325e0 100644
--- a/extensions/markdown-language-features/package-lock.json
+++ b/extensions/markdown-language-features/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@vscode/extension-telemetry": "^0.9.8",
         "@vscode/markdown-editor": "^0.0.2-5",
-        "dompurify": "^3.4.10",
+        "dompurify": "^3.4.11",
         "highlight.js": "^11.8.0",
         "katex": "^0.16.33",
         "markdown-it": "^12.3.2",
@@ -1348,9 +1348,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.4.10",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.10.tgz",
-      "integrity": "sha512-0xzNv0e7oYC6yyuOGZIABPM4qtg3QxLFniDNPP4ZP90wR8Yq3zgwpRbrNiT4N3IKqDbbYFEJLV+JWEs19aZ//w==",
+      "version": "3.4.11",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.11.tgz",
+      "integrity": "sha512-zhlUV12GsaRzMsf9q5M254YhA4+VuF0fG+QFqu6aYpoGlKtz+w8//jBcGVYBgQkR5GHjUomejY84AV+/uPbWdw==",
       "license": "(MPL-2.0 OR Apache-2.0)",
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"
diff --git a/extensions/markdown-language-features/package.json b/extensions/markdown-language-features/package.json
index 9be9248806d6a..439d4670e040d 100644
--- a/extensions/markdown-language-features/package.json
+++ b/extensions/markdown-language-features/package.json
@@ -899,7 +899,7 @@
   "dependencies": {
     "@vscode/extension-telemetry": "^0.9.8",
     "@vscode/markdown-editor": "^0.0.2-5",
-    "dompurify": "^3.4.10",
+    "dompurify": "^3.4.11",
     "highlight.js": "^11.8.0",
     "katex": "^0.16.33",
     "markdown-it": "^12.3.2",