diff --git a/packages/web-server/package-lock.json b/packages/web-server/package-lock.json
index 1adaf02..a9e234b 100644
--- a/packages/web-server/package-lock.json
+++ b/packages/web-server/package-lock.json
@@ -328,9 +328,9 @@
       }
     },
     "highlight.js": {
-      "version": "9.18.1",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.18.1.tgz",
-      "integrity": "sha512-OrVKYz70LHsnCgmbXctv/bfuvntIKDz177h0Co37DQ5jamGZLVmoCVMtjMtNZY3X9DrCcKfklHPNeA0uPZhSJg=="
+      "version": "10.4.1",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.4.1.tgz",
+      "integrity": "sha512-yR5lWvNz7c85OhVAEAeFhVCc/GV4C30Fjzc/rCP0aCWzc1UUOPUk55dK/qdwTZHBvMZo+eZ2jpk62ndX/xMFlg=="
     },
     "http-cache-semantics": {
       "version": "4.1.0",
diff --git a/packages/web-server/package.json b/packages/web-server/package.json
index 09c34b8..ad17d25 100644
--- a/packages/web-server/package.json
+++ b/packages/web-server/package.json
@@ -16,7 +16,7 @@
     "axios": "^0.19.2",
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
-    "highlight.js": "^9.18.1",
+    "highlight.js": "^10.4.1",
     "markdown-it": "^10.0.0",
     "public-ip": "^4.0.0",
     "querystring": "^0.2.0"