diff --git a/src/language-markdown/parser-markdown.js b/src/language-markdown/parser-markdown.js
index bb961f1031fd..0266b399d626 100644
--- a/src/language-markdown/parser-markdown.js
+++ b/src/language-markdown/parser-markdown.js
@@ -26,10 +26,7 @@ const mdx = require("./mdx");
 function createParse({ isMDX }) {
   return (text) => {
     const processor = unified()
-      .use(remarkParse, {
-        commonmark: true,
-        ...(isMDX && { blocks: [mdx.BLOCKS_REGEX] }),
-      })
+      .use(remarkParse)
       .use(footnotes)
       .use(frontMatter)
       .use(remarkMath)