diff --git a/theme/package.json b/theme/package.json
index 17c79704a2a..6356362399a 100644
--- a/theme/package.json
+++ b/theme/package.json
@@ -26,7 +26,7 @@
   "dependencies": {
     "@github/combobox-nav": "^2.1.5",
     "@mdx-js/mdx": "^2.2.1",
-    "@mdx-js/react": "^1.6.22",
+    "@mdx-js/react": "^3.1.1",
     "@primer/components": "^23.0.0",
     "@primer/octicons-react": "^17.10.0",
     "@primer/react": "^35.16.0",