diff --git a/fixtures/gists-app/app/root.jsx b/fixtures/gists-app/app/root.jsx
index 16aa6633c9f..77fe7396433 100644
--- a/fixtures/gists-app/app/root.jsx
+++ b/fixtures/gists-app/app/root.jsx
@@ -2,13 +2,14 @@ import { useEffect } from "react";
 import { Links, Meta, Scripts, useRouteData, useMatches } from "remix";
 import { Outlet, Link } from "react-router-dom";
 
+import normalizeHref from "@exampledev/new.css/new.css";
 import stylesHref from "./styles/app.css";
 
 export function links() {
   return [
     {
       rel: "stylesheet",
-      href: "https://unpkg.com/@exampledev/new.css@1.1.3/new.css"
+      href: normalizeHref
     },
     { rel: "stylesheet", href: stylesHref }
   ];
diff --git a/fixtures/gists-app/package.json b/fixtures/gists-app/package.json
index 6e5d1b4f376..53e5fdff5df 100644
--- a/fixtures/gists-app/package.json
+++ b/fixtures/gists-app/package.json
@@ -12,6 +12,7 @@
     "start": "node server.js"
   },
   "dependencies": {
+    "@exampledev/new.css": "^1.1.3",
     "@mdx-js/react": "^1.6.22",
     "autoprefixer": "^10.2.4",
     "compression": "^1.7.4",
diff --git a/packages/remix-dev/compiler.ts b/packages/remix-dev/compiler.ts
index 9daeece4bb5..530a1caf646 100644
--- a/packages/remix-dev/compiler.ts
+++ b/packages/remix-dev/compiler.ts
@@ -338,6 +338,10 @@ async function createServerBuild(
               packageName
             );
           }
+
+          // allow importing css files for bundling / hashing from node_modules.
+          if (id.endsWith(".css")) return false;
+
           return true;
         }
 
diff --git a/packages/remix-dev/compiler/plugins/mdx.ts b/packages/remix-dev/compiler/plugins/mdx.ts
index 46f858e1a29..fd19abf9425 100644
--- a/packages/remix-dev/compiler/plugins/mdx.ts
+++ b/packages/remix-dev/compiler/plugins/mdx.ts
@@ -44,6 +44,7 @@ export function mdxPlugin(config: RemixConfig): esbuild.Plugin {
           export const filename = ${JSON.stringify(path.basename(args.path))};
           export const headers = typeof attributes !== "undefined" && attributes.headers;
           export const meta = typeof attributes !== "undefined" && attributes.meta;
+          export const links = undefined;
           `;
 
           let errors: esbuild.PartialMessage[] = [];