diff --git a/package-lock.json b/package-lock.json
index 5c02a59..6bfcafa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1284,9 +1284,9 @@
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
     },
     "highlight.js": {
-      "version": "9.12.0",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.12.0.tgz",
-      "integrity": "sha1-5tnb5Xy+/mB1HwKvM2GVhwyQwB4="
+      "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=="
     },
     "hosted-git-info": {
       "version": "2.6.0",
diff --git a/package.json b/package.json
index 591ecb3..580b70b 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "command-line-args": "^5.0.2",
     "command-line-usage": "^5.0.5",
     "express": "^4.16.3",
-    "highlight.js": "^9.12.0",
+    "highlight.js": "^10.4.1",
     "js-yaml": "^3.11.0",
     "katex": "^0.9.0",
     "latex2js": "^1.2.0",