diff --git a/web/package-lock.json b/web/package-lock.json
index 6cf97f3..32374c0 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -2784,9 +2784,9 @@
       }
     },
     "highlight.js": {
-      "version": "9.13.1",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.13.1.tgz",
-      "integrity": "sha512-Sc28JNQNDzaH6PORtRLMvif9RSn1mYuOoX3omVjnb0+HbpPygU2ALBI0R/wsiqCb4/fcp07Gdo8g+fhtFrQl6A=="
+      "version": "9.18.1",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.18.1.tgz",
+      "integrity": "sha512-OrVKYz70LHsnCgmbXctv/bfuvntIKDz177h0Co37DQ5jamGZLVmoCVMtjMtNZY3X9DrCcKfklHPNeA0uPZhSJg=="
     },
     "history": {
       "version": "4.7.2",
diff --git a/web/package.json b/web/package.json
index 3663ec7..6cf7963 100644
--- a/web/package.json
+++ b/web/package.json
@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "doctrine": "2.1.0",
-    "highlight.js": "9.13.1",
+    "highlight.js": "9.18.1",
     "htmlescape": "1.1.1",
     "ramda": "0.26.0",
     "react": "16.6.0",