diff --git a/packages/gensx-cli/package.json b/packages/gensx-cli/package.json
index 3878ca62..968e2ad0 100644
--- a/packages/gensx-cli/package.json
+++ b/packages/gensx-cli/package.json
@@ -3,9 +3,9 @@
   "version": "0.0.1",
   "description": "`GenSX command line tools",
   "bin": {
-    "gensx": "./dist/run.mjs"
+    "gensx": "./dist/run.js"
   },
-  "main": "./dist/index.mjs",
+  "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "directories": {
     "lib": "src",
diff --git a/packages/gensx-cli/vite.config.ts b/packages/gensx-cli/vite.config.ts
index 2737c0e2..97a4b6a7 100644
--- a/packages/gensx-cli/vite.config.ts
+++ b/packages/gensx-cli/vite.config.ts
@@ -13,7 +13,7 @@ export default defineConfig(({ command }) => ({
       },
       formats: ["es", "cjs"],
       fileName: (format, entryName) =>
-        `${entryName}.${format === "es" ? "mjs" : "cjs"}`,
+        `${entryName}.${format === "es" ? "js" : "cjs"}`,
     },
     rollupOptions: {
       external: (id) => !id.startsWith(".") && !id.startsWith("/"),