diff --git a/.github/scripts/lib/generated-regions.ts b/.github/scripts/lib/generated-regions.ts
index a4b3c4a3..f9d6bc0e 100644
--- a/.github/scripts/lib/generated-regions.ts
+++ b/.github/scripts/lib/generated-regions.ts
@@ -8,6 +8,7 @@ import { fromMarkdown } from "mdast-util-from-markdown";
 import { gfmTableFromMarkdown } from "mdast-util-gfm-table";
 import { gfmTable } from "micromark-extension-gfm-table";
 import { err, ok, type Result } from "neverthrow";
+import { visitParents } from "unist-util-visit-parents";
 import { Parser } from "yaml";
 
 /** Which comment syntax a file's markers use: a complete `<!-- -->` comment, or a whole-line YAML `#` comment. */
@@ -296,23 +297,17 @@ function scanMarkdown(text: string): MarkdownScan {
     html,
     blockquote: quoted,
   };
-  const walk = (node: MarkdownNode, inQuote: boolean): void => {
+  const tree = fromMarkdown(text, {
+    extensions: [gfmTable()],
+    mdastExtensions: [gfmTableFromMarkdown()],
+  });
+  visitParents(tree, (node, ancestors) => {
     spansByType[node.type]?.push(nodeSpan(node));
-    if (node.type === "heading" && !inQuote) {
+    if (node.type === "heading" && !ancestors.some((ancestor) => ancestor.type === "blockquote")) {
       const [start, end] = nodeSpan(node);
       headings.push({ offset: start, text: text.slice(start, end).trim() });
     }
-    if ("children" in node) {
-      for (const child of node.children) {
-        walk(child, inQuote || node.type === "blockquote");
-      }
-    }
-  };
-  const tree = fromMarkdown(text, {
-    extensions: [gfmTable()],
-    mdastExtensions: [gfmTableFromMarkdown()],
   });
-  walk(tree, false);
   return { code, codeSpans, html, quoted, headings };
 }
 
diff --git a/bun.lock b/bun.lock
index c460a796..8b85f93d 100644
--- a/bun.lock
+++ b/bun.lock
@@ -52,6 +52,7 @@
         "publint": "0.3.25",
         "tsdown": "0.23.0",
         "typescript": "7.0.2",
+        "unist-util-visit-parents": "6.0.2",
       },
     },
   },
diff --git a/package.json b/package.json
index ef324d83..387e0439 100644
--- a/package.json
+++ b/package.json
@@ -108,6 +108,7 @@
     "oxc-parser": "0.152.0",
     "publint": "0.3.25",
     "tsdown": "0.23.0",
-    "typescript": "7.0.2"
+    "typescript": "7.0.2",
+    "unist-util-visit-parents": "6.0.2"
   }
 }