diff --git a/assets/javascripts/vendor/prism.js b/assets/javascripts/vendor/prism.js
index b55bdecd..3f285536 100644
--- a/assets/javascripts/vendor/prism.js
+++ b/assets/javascripts/vendor/prism.js
@@ -60,8 +60,7 @@ var _ = _self.Prism = {
 					return clone;
 
 				case 'Array':
-					// Check for existence for IE8
-					return o.map && o.map(function(v) { return _.util.clone(v); });
+					return o.map(function(v) { return _.util.clone(v); });
 			}
 
 			return o;
@@ -507,7 +506,7 @@ Token.stringify = function(o, language, parent) {
 // if (script) {
 // 	_.filename = script.src;
 
-// 	if (document.addEventListener && !_.manual && !script.hasAttribute('data-manual')) {
+// 	if (!_.manual && !script.hasAttribute('data-manual')) {
 // 		if(document.readyState !== "loading") {
 // 			if (window.requestAnimationFrame) {
 // 				window.requestAnimationFrame(_.highlightAll);
@@ -638,7 +637,7 @@ if (Prism.languages.markup) {
 Prism.languages.clike = {
 	'comment': [
 		{
-			pattern: /(^|[^\\])\/\*[\s\S]*?\*\//,
+			pattern: /(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,
 			lookbehind: true
 		},
 		{
@@ -715,7 +714,7 @@ if (Prism.languages.markup) {
 Prism.languages.js = Prism.languages.javascript;
 
 Prism.languages.c = Prism.languages.extend('clike', {
-	'keyword': /\b(asm|typeof|inline|auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|union|unsigned|void|volatile|while)\b/,
+	'keyword': /\b(_Alignas|_Alignof|_Atomic|_Bool|_Complex|_Generic|_Imaginary|_Noreturn|_Static_assert|_Thread_local|asm|typeof|inline|auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|union|unsigned|void|volatile|while)\b/,
 	'operator': /\-[>-]?|\+\+?|!=?|<<?=?|>>?=?|==?|&&?|\|?\||[~^%?*\/]/,
 	'number': /\b-?(?:0x[\da-f]+|\d*\.?\d+(?:e[+-]?\d+)?)[ful]*\b/i
 });
@@ -735,14 +734,14 @@ Prism.languages.insertBefore('c', 'string', {
 			},
 			// highlight macro directives as keywords
 			'directive': {
-				pattern: /(#\s*)\b(define|elif|else|endif|error|ifdef|ifndef|if|import|include|line|pragma|undef|using)\b/,
+				pattern: /(#\s*)\b(define|defined|elif|else|endif|error|ifdef|ifndef|if|import|include|line|pragma|undef|using)\b/,
 				lookbehind: true,
 				alias: 'keyword'
 			}
 		}
 	},
 	// highlight predefined macros as constants
-	'constant': /\b(__FILE__|__LINE__|__DATE__|__TIME__|__TIMESTAMP__|__func__|EOF|NULL|stdin|stdout|stderr)\b/
+	'constant': /\b(__FILE__|__LINE__|__DATE__|__TIME__|__TIMESTAMP__|__func__|EOF|NULL|SEEK_CUR|SEEK_END|SEEK_SET|stdin|stdout|stderr)\b/
 });
 
 delete Prism.languages.c['class-name'];