diff --git a/src/frontend/apps/lti_site/package.json b/src/frontend/apps/lti_site/package.json
index 08a288408d..38a5ae168e 100644
--- a/src/frontend/apps/lti_site/package.json
+++ b/src/frontend/apps/lti_site/package.json
@@ -87,7 +87,7 @@
     "highlight.js": "11.11.1",
     "iframe-resizer": "5.3.2",
     "intl": "1.2.5",
-    "katex": "0.16.19",
+    "katex": "0.16.21",
     "lib-classroom": "*",
     "lib-common": "*",
     "lib-components": "*",
diff --git a/src/frontend/yarn.lock b/src/frontend/yarn.lock
index b300fc014c..39dc81f911 100644
--- a/src/frontend/yarn.lock
+++ b/src/frontend/yarn.lock
@@ -10364,10 +10364,10 @@ jwt-decode@4.0.0:
   resolved "https://registry.yarnpkg.com/jwt-decode/-/jwt-decode-4.0.0.tgz#2270352425fd413785b2faf11f6e755c5151bd4b"
   integrity sha512-+KJGIyHgkGuIq3IEBNftfhW/LfWhXUIY6OmyVWjliu5KH1y0fw7VQ8YndE2O4qZdMSd9SqbnC8GOcZEy0Om7sA==
 
-katex@0.16.19:
-  version "0.16.19"
-  resolved "https://registry.yarnpkg.com/katex/-/katex-0.16.19.tgz#698e026188876f9c8c93d3ecb27b212aaa056d0a"
-  integrity sha512-3IA6DYVhxhBabjSLTNO9S4+OliA3Qvb8pBQXMfC4WxXJgLwZgnfDl0BmB4z6nBMdznBsZ+CGM8DrGZ5hcguDZg==
+katex@0.16.21:
+  version "0.16.21"
+  resolved "https://registry.yarnpkg.com/katex/-/katex-0.16.21.tgz#8f63c659e931b210139691f2cc7bb35166b792a3"
+  integrity sha512-XvqR7FgOHtWupfMiigNzmh+MgUVmDGU2kXZm899ZkPfcuoPuFxyHmXsgATDpFZDAXCI8tvinaVcDo8PIIJSo4A==
   dependencies:
     commander "^8.3.0"