diff --git a/package-lock.json b/package-lock.json
index 416fcc7..82ed0ec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1405,9 +1405,9 @@
       "dev": true
     },
     "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==",
       "dev": true
     },
     "hsl-regex": {
diff --git a/package.json b/package.json
index eb50ff1..cad3484 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "ejs": "^3.0.2",
     "gh-pages": "^2.2.0",
     "glob": "^7.1.6",
-    "highlight.js": "^9.18.1",
+    "highlight.js": "^10.4.1",
     "live-server": "^1.2.1",
     "mkdirp": "^1.0.4",
     "postcss-calc": "^7.0.2",