diff --git a/e2e-tests/mdx-less-babel/package.json b/e2e-tests/mdx-less-babel/package.json
index 7df2170e3f8fe..a13b805c0a6db 100644
--- a/e2e-tests/mdx-less-babel/package.json
+++ b/e2e-tests/mdx-less-babel/package.json
@@ -3,7 +3,7 @@
   "description": "Gatsby MDX tester",
   "version": "1.0.0",
   "dependencies": {
-    "@mdx-js/mdx": "^1.6.6",
+    "@mdx-js/mdx": "^2.0.0",
     "@mdx-js/react": "^1.6.6",
     "cypress": "^3.1.0",
     "gatsby": "^2.0.118",