diff --git a/extensions/markdown-language-features/package-lock.json b/extensions/markdown-language-features/package-lock.json
index cabfda2e0fe29..dc2944e0c2c24 100644
--- a/extensions/markdown-language-features/package-lock.json
+++ b/extensions/markdown-language-features/package-lock.json
@@ -397,9 +397,9 @@
       }
     },
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-      "resolved": "https://registry.npmjs.org/katex/-/katex-0.16.10.tgz",
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+      "version": "0.16.21",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.16.21.tgz",
+      "integrity": "sha512-XvqR7FgOHtWupfMiigNzmh+MgUVmDGU2kXZm899ZkPfcuoPuFxyHmXsgATDpFZDAXCI8tvinaVcDo8PIIJSo4A==",
       "dev": true,
       "funding": [
         "https://opencollective.com/katex",