diff --git a/developers.cloudflare.com/package.json b/developers.cloudflare.com/package.json
old mode 100755
new mode 100644
index a351a1a3a7b2ebe..1e486600e62303b
--- a/developers.cloudflare.com/package.json
+++ b/developers.cloudflare.com/package.json
@@ -21,7 +21,7 @@
     "gatsby-plugin-layout": "1.3.10",
     "gatsby-plugin-manifest": "2.4.18",
     "gatsby-plugin-material-ui": "2.1.9",
-    "gatsby-plugin-mdx": "1.2.25",
+    "gatsby-plugin-mdx": "4.0.0",
     "gatsby-plugin-no-sourcemaps": "2.2.0",
     "gatsby-plugin-offline": "3.2.17",
     "gatsby-plugin-react-helmet": "3.3.10",