diff --git a/package.json b/package.json
index 72d1a58..41f72b3 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "eslint": "^7.0.0",
     "express": "^4.14.0",
     "gh-pages": "^2.2.0",
-    "highlight.js": "^9.18.1",
+    "highlight.js": "^10.0.3",
     "markdown-it-abbr": "^1.0.4",
     "markdown-it-container": "^2.0.0",
     "markdown-it-deflist": "^2.0.0",
diff --git a/support/demo_template/index.js b/support/demo_template/index.js
index 7365589..8414c9a 100644
--- a/support/demo_template/index.js
+++ b/support/demo_template/index.js
@@ -6,7 +6,7 @@
 var mdurl = require('mdurl');
 
 
-var hljs = require('highlight.js/lib/highlight.js');
+var hljs = require('highlight.js/lib/core');
 
 hljs.registerLanguage('actionscript', require('highlight.js/lib/languages/actionscript'));
 hljs.registerLanguage('apache',       require('highlight.js/lib/languages/apache'));
@@ -18,6 +18,8 @@ hljs.registerLanguage('bash',         require('highlight.js/lib/languages/bash')
 hljs.registerLanguage('clojure',      require('highlight.js/lib/languages/clojure'));
 hljs.registerLanguage('cmake',        require('highlight.js/lib/languages/cmake'));
 hljs.registerLanguage('coffeescript', require('highlight.js/lib/languages/coffeescript'));
+hljs.registerLanguage('c-like',       require('highlight.js/lib/languages/c-like'));
+hljs.registerLanguage('c',            require('highlight.js/lib/languages/c'));
 hljs.registerLanguage('cpp',          require('highlight.js/lib/languages/cpp'));
 hljs.registerLanguage('arduino',      require('highlight.js/lib/languages/arduino'));
 hljs.registerLanguage('css',          require('highlight.js/lib/languages/css'));
@@ -35,6 +37,7 @@ hljs.registerLanguage('ini',          require('highlight.js/lib/languages/ini'))
 hljs.registerLanguage('java',         require('highlight.js/lib/languages/java'));
 hljs.registerLanguage('javascript',   require('highlight.js/lib/languages/javascript'));
 hljs.registerLanguage('json',         require('highlight.js/lib/languages/json'));
+hljs.registerLanguage('latex',         require('highlight.js/lib/languages/latex'));
 hljs.registerLanguage('less',         require('highlight.js/lib/languages/less'));
 hljs.registerLanguage('lisp',         require('highlight.js/lib/languages/lisp'));
 hljs.registerLanguage('livescript',   require('highlight.js/lib/languages/livescript'));