diff --git a/src/lib/markdown/renderer.ts b/src/lib/markdown/renderer.ts
index 0d40106..a57dd25 100644
--- a/src/lib/markdown/renderer.ts
+++ b/src/lib/markdown/renderer.ts
@@ -27,6 +27,7 @@ import java from 'highlight.js/lib/languages/java';
 import php from 'highlight.js/lib/languages/php';
 import dockerfile from 'highlight.js/lib/languages/dockerfile';
 import nginx from 'highlight.js/lib/languages/nginx';
+import apache from 'highlight.js/lib/languages/apache';
 import ini from 'highlight.js/lib/languages/ini';
 import http from 'highlight.js/lib/languages/http';
 import diff from 'highlight.js/lib/languages/diff';
@@ -57,6 +58,9 @@ hljs.registerLanguage('java', java);
 hljs.registerLanguage('php', php);
 hljs.registerLanguage('dockerfile', dockerfile);
 hljs.registerLanguage('nginx', nginx);
+hljs.registerLanguage('apache', apache);
+hljs.registerLanguage('apacheconf', apache);
+hljs.registerLanguage('httpd', apache);
 hljs.registerLanguage('ini', ini);
 hljs.registerLanguage('toml', ini);
 hljs.registerLanguage('http', http);
diff --git a/src/lib/markdown/rendering.test.ts b/src/lib/markdown/rendering.test.ts
index 028532f..1f0d829 100644
--- a/src/lib/markdown/rendering.test.ts
+++ b/src/lib/markdown/rendering.test.ts
@@ -7,6 +7,7 @@ import {
 	resolveAdmonitionTitle,
 	sanitizeMarkdownHtml
 } from './rendering';
+import { renderMarkdown } from './renderer';
 
 describe('replaceGithubAdmonitions', () => {
 	it('passes the type, title and quote body to the renderer', () => {
@@ -122,3 +123,22 @@ describe('sanitizeMarkdownHtml', () => {
 		expect(sanitized).toContain('rel="noopener noreferrer"');
 	});
 });
+
+describe('renderMarkdown code highlighting', () => {
+	it('highlights apache, apacheconf, and httpd configuration blocks', () => {
+		const mdApache = '```apache\nRewriteEngine On\nRewriteRule ^index\\.html$ / [R=301,L]\n```';
+		const htmlApache = renderMarkdown(mdApache);
+		expect(htmlApache).toContain('language-apache');
+		expect(htmlApache).toContain('RewriteEngine');
+
+		const mdConf = '```apacheconf\n<VirtualHost *:80>\nServerName example.com\n</VirtualHost>\n```';
+		const htmlConf = renderMarkdown(mdConf);
+		expect(htmlConf).toContain('language-apacheconf');
+		expect(htmlConf).toContain('hljs-section');
+
+		const mdHttpd = '```httpd\n<VirtualHost *:80>\nServerName example.com\n</VirtualHost>\n```';
+		const htmlHttpd = renderMarkdown(mdHttpd);
+		expect(htmlHttpd).toContain('language-httpd');
+		expect(htmlHttpd).toContain('hljs-section');
+	});
+});