diff --git a/.changeset/spotty-swans-run.md b/.changeset/spotty-swans-run.md
new file mode 100644
index 0000000000..7a16343d69
--- /dev/null
+++ b/.changeset/spotty-swans-run.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+The backend development setup now ignores the `"browser"` and `"module"` entry points in `package.json`, and instead always uses `"main"`.
diff --git a/packages/cli/src/lib/bundler/config.ts b/packages/cli/src/lib/bundler/config.ts
index bfd05807ad..575af4ea8b 100644
--- a/packages/cli/src/lib/bundler/config.ts
+++ b/packages/cli/src/lib/bundler/config.ts
@@ -272,7 +272,7 @@ export async function createBackendConfig(
     ],
     resolve: {
       extensions: ['.ts', '.tsx', '.mjs', '.js', '.jsx'],
-      mainFields: ['browser', 'module', 'main'],
+      mainFields: ['main'],
       modules: [paths.rootNodeModules, ...moduleDirs],
       plugins: [
         new LinkedPackageResolvePlugin(paths.rootNodeModules, externalPkgs),