diff --git a/.docs/lib/parse_sections.js b/.docs/lib/parse_sections.js
index 73df3b2..8f8be3b 100644
--- a/.docs/lib/parse_sections.js
+++ b/.docs/lib/parse_sections.js
@@ -39,8 +39,8 @@ function make_section(acc, cat_current, cats) {
 			.replace(/\s+/g, "-")
 			.replace(/-.*$/, ""),
 		content: markdown.render(acc.slice(1).join("\n"))
-			.replace(/<h4(\/?)>/g, "<h3$1>")
-			.replace(/<h5(\/?)>/g, "<h4$1>")
+			.replace(/<(\/?)h4>/g, "<$1h3>")
+			.replace(/<(\/?)h5>/g, "<$1h4>")
 	};
 }