diff --git a/github-actions/bundle-script/esbuild.js b/github-actions/bundle-script/esbuild.js
index 80232ee..a6b0a98 100644
--- a/github-actions/bundle-script/esbuild.js
+++ b/github-actions/bundle-script/esbuild.js
@@ -9,7 +9,7 @@ async function main() {
       'src/index.ts'
     ],
     bundle: true,
-    format: 'cjs',
+    format: 'esm',
     minify: production,
     sourcemap: !production,
     sourcesContent: false,
diff --git a/github-actions/bundle-script/package.json b/github-actions/bundle-script/package.json
index eca2ebc..2c57e7e 100644
--- a/github-actions/bundle-script/package.json
+++ b/github-actions/bundle-script/package.json
@@ -1,6 +1,7 @@
 {
   "name": "gh-scripting-compiler",
-  "version": "1.1.2",
+  "version": "1.1.3",
+  "type": "module",
   "main": "dist/index.js",
   "scripts": {
     "build": "node esbuild.js",