diff --git a/package-lock.json b/package-lock.json
index fef3e5b..7dfdddb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3200,7 +3200,8 @@
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
       "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "coa": {
       "version": "2.0.2",
@@ -6041,9 +6042,9 @@
       "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": "9.18.5",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.18.5.tgz",
+      "integrity": "sha512-a5bFyofd/BHCX52/8i8uJkjr9DYwXIPnM/plwI6W7ezItLGqzt7X2G2nXuYSfsIJdkwwj/g9DG1LkcGJI/dDoA==",
       "dev": true
     },
     "hmac-drbg": {
@@ -8643,7 +8644,8 @@
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
       "integrity": "sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "pify": {
       "version": "4.0.1",
@@ -10083,7 +10085,8 @@
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/rx-lite/-/rx-lite-4.0.8.tgz",
       "integrity": "sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "rx-lite-aggregates": {
       "version": "4.0.8",