diff --git a/package.json b/package.json
index 02d36f8fd..18cf39f37 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
   "dependencies": {
     "browser-request": "^0.3.3",
     "gfm.css": "^1.1.2",
-    "highlight.js": "^10.1.2",
+    "highlight.js": "^10.4.1",
     "jsrsasign": "^9.1.5",
     "katex": "^0.12.0",
     "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
diff --git a/yarn.lock b/yarn.lock
index 7f4574f7d..5117fcd10 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5812,10 +5812,10 @@ hex-color-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
   integrity sha512-l9sfDFsuqtOqKDsQdqrMRk0U85RZc0RtOR9yPI7mRVOa4FsR/BVnZ0shmQRM96Ji99kYZP/7hn1cedc1+ApsTQ==
 
-highlight.js@^10.1.2:
-  version "10.1.2"
-  resolved "https://registry.yarnpkg.com/highlight.js/-/highlight.js-10.1.2.tgz#c20db951ba1c22c055010648dfffd7b2a968e00c"
-  integrity sha512-Q39v/Mn5mfBlMff9r+zzA+gWxRsCRKwEMvYTiisLr/XUiFI/4puWt0Ojdko3R3JCNWGdOWaA5g/Yxqa23kC5AA==
+highlight.js@^10.1.2, highlight.js@^10.4.1:
+  version "10.4.1"
+  resolved "https://registry.yarnpkg.com/highlight.js/-/highlight.js-10.4.1.tgz#d48fbcf4a9971c4361b3f95f302747afe19dbad0"
+  integrity sha512-yR5lWvNz7c85OhVAEAeFhVCc/GV4C30Fjzc/rCP0aCWzc1UUOPUk55dK/qdwTZHBvMZo+eZ2jpk62ndX/xMFlg==
 
 hmac-drbg@^1.0.0:
   version "1.0.1"