diff --git a/packages/server-runtime/package.json b/packages/server-runtime/package.json
index 1d22c44b3..9e5ac2e98 100644
--- a/packages/server-runtime/package.json
+++ b/packages/server-runtime/package.json
@@ -17,12 +17,10 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js",
-      "require": "./dist/index.cjs"
+      "default": "./dist/index.js"
     }
   },
-  "main": "./dist/index.cjs",
-  "module": "./dist/index.js",
+  "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "files": [
     "README.md",
diff --git a/packages/server-runtime/tsdown.config.ts b/packages/server-runtime/tsdown.config.ts
index 0c1ea341b..cf2a41eac 100644
--- a/packages/server-runtime/tsdown.config.ts
+++ b/packages/server-runtime/tsdown.config.ts
@@ -4,10 +4,6 @@ export default defineConfig({
   entry: [
     'src/index.ts',
   ],
-  format: [
-    'esm',
-    'cjs',
-  ],
   target: 'node18',
   outDir: 'dist',
   clean: true,